Recent false alarm scares in US airports have exposed the lack of training and preparation for large evacuations of people in public areas, travel experts told NBC News.

It has happened three times at major airports this summer, the latest at Los Angeles International on Sunday, when rumors of gunfire sent thousands of people fleeing from terminals and onto airfields and roads, forcing authorities to stop flights and send all travelers back through security checkpoints.

Similar panics unfolded at New York City's John F. Kennedy International Airport: a mistaken report of shots fired on Aug. 14 and a false bomb scare on June 29.

Anthony Roman, who runs a security consulting firm in New York said having people in an active tarmac, an environment they're absolutely unfamiliar with, and allow them to go on open roadways while traffic is still moving, is obscene.

The Port Authority of New York and New Jersey, which runs and polices JFK, did not return messages seeking comment on Monday. Neither did the Los Angeles Airport Police Division.

A cat died in a Santee House Fire that sent thick black smoke and flames into the air Monday evening. 

The fire sparked at approximately 5:37 p.m. on the 8200 block of Fanita Drive near Farrington Drive, according to the Heartland Fire Department. 

According to officials, no one besides two cats and a pet dog had been inside the home when the fire started. 

Firefighters were able to save and revive one of the cats from the one-story home, officials said. The cat, named Dinah, belonged to the homeowner.

A dog named Dennis was also found unresponsive but is okay. 

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Firefigher Allen Hazelton pulled Dinah out of the home and was able to revive her.

"Incredible," said Heather Freidman. "I've got goosebumps. I've never been this close to all this happening."

Freidman was there to witness the entire ordeal, watching Hazelton revive the cat, who had been trapped inside the home just moments before.

"He was sweating and trying to get her breathe and petting and stroking her," she said.

Sadly, Dinah later died at an animal hospital.

Witnesses said a third cat, named Alice, was seen running out of the home. She was later found safe.

The FBI and the Philadelphia 76ers gave money to increase the reward for information on the death of a young girl who was shot and killed in Camden last week.

Camden County Police announced Monday the reward for information in the case of 8-year-old Gabby Hill-Carter increased to $76,000 after contributions were made by the FBI and the Sixers. The reward had previously increased from $24,000 to $50,000 Sunday after philanthropist and Democratic Party leader George E. Norcross contributed $26,000.

Hill-Carter, an 8-year-old who lived in Camden, was shot in the head after being caught in a crossfire, police said.

She died Friday when her family chose to remove her from life support, officials told NBC10. Hill-Carter was in extremely critical condition since Wednesday night when she was caught in the middle of a gang shooting at S. 8th and Spruce streets.

She suffered a gunshot wound to the head and was rushed to Cooper University Trauma Center for treatment.

But Friday afternoon, Hill-Carter's family said their goodbyes to the girl. They sat by her side as she drew her last breath.

Camden County Police, state prosecutors and federal agents have been searching for four men believed to be involved in the shooting.

Hundreds of loved ones gathered on the same block where the girl was killed Saturday night for a candlelight vigil.

"I love my baby so much and I wish she was still here," said the girl's mother Marissa.

Anyone with information on the shooting should call the Camden tip line at (856) 757-7042 or the Citizen's Crime Commission at (215) 546-TIPS.

"Feel the pain that the family is feeling and then come forward," said Darryl Mack, the girl's uncle. "See the visuals. Hear our voices."

The San Diego Police Officers Association’s Widow and Orphans Fund received a major donation Monday from the Viejas Band of Kumeyaay Indians.

The Viejas Tribe donated $50,000 to the fund which will be used to support the families of fallen police officers with the financial burden that comes when officers' lives are cut short in the line of duty.

Mayor Kevin Faulconer, Police Chief Shelley Zimmerman and San Diego Police Officers Association President Brian Marvel accepted the donation presented by Viejas Chairman Robert Welch, Jr. on behalf of the tribe.

“It is our hope that this donation will help support the Widows & Orphans Fund in their mission of healing, and that it will also serve to encourage other organizations within our great city to follow suit in contributing to the San Diego Police Officers Association,” Chariman Welch said in a statement.

The fund provides support for families in different ways, including payment of health insurance.

A suspected drunken driver had a measured blood-alcohol level of 0.13 two hours after a Mira Mesa crash that left a young woman dead, according to a San Diego County Deputy District Attorney.

Christian Evangelista, 21, is facing gross vehicular manslaughter and DUI causing injury charges.

He pleaded not guilty through an attorney at his arraignment Monday. A judge ordered him held on $1 million bail. 

Evangelista is accused in a fatal crash that happened in Mira Mesa over the weekend.

Prosecutors said Evangelista was drinking with friends at home when they decided they wanted to get more alcohol.

One friend offered to drive, prosecutors said, but Evangelista said he was okay to drive, according to Deputy District Attorney Bright. 

Evangelista was behind the wheel of the Honda sedan at approximately 1 a.m. Sunday morning, driving on Camino Ruiz, approaching Zapata Avenue, when the crash happened, police said. 

A 20-year-old behind the wheel of an Acura pulled out onto Camino Ruiz, police said. 

Evangelista t-boned the driver of the Acura, police said. The 19-year-old driver, later identified as Tutam Le, was t-boned and taken to the hospital, where she died. 

“He was traveling 55 to 60 miles per hour and t-boned Tutam Le head-on,” Bright said. “His BAC was .13 two hours after the collision, which means it would have been .16 to .17 at the time of the collision.”

Anyone with information related to the above incidents is encouraged to call the San Diego Police or contact Crime Stoppers at (888) 580-8477.

With thousands already homeless after the floods in Louisiana, the formation of mold threatens many others in the region, NBC News reported.

As many as 11 people were killed when unrelenting rain flooded the state beginning Aug. 13. Gov. John Bel Edwards called the disaster a "historic, unprecedented flooding event" after the storm system dropped three times as much rain on Louisiana as Hurricane Katrina, according to National Weather Service records.

And many more than the 60,000 residents already left homeless could lose their homes, too.

"Mold removal is a top priority," the state Health Department said in the days following the floods.

A sewage spill that closed part of east Mission Bay in San Diego earlier this year could cost the City millions of dollars in fines, NBC 7 learned Monday.

In January, a landslide in Tecolote Canyon broke a main sewer line, dumping more than 100,000 gallons of raw sewage into the Tecolote Creek and east Mission Bay.

On Monday, the San Diego Regional Water Quality Control Board verified the sewage spill actually dumped more than 6.7 million gallons of untreated sewage into Tecolote Creek, which later leaked into East Mission Bay.

"That's disgusting. That is straight up disgusting,” Mission Bay visitor Zuri Walker said.

Walker told NBC 7 that Mission Bay is her favorite place to run, but the water is something she appreciates from a distance.

“The only time I go in [there] is when I go wake-boarding around the other side and even then, it's not that great,” Walker said.

Other Mission Bay visitors had a similar reaction.

"It's a shame we are one of the richest countries in the world we can't even put our garbage away,"  kite surfer, Marko Bartscherer said.

The new figure was revealed in a technical report completed by the City and issued to the San Diego Regional Water Quality Control Board.

“We would say that is a sizable spill,” Water Control Board Supervising Engineer David Barker said.

Barker says the City promptly responded to the spill, fixed the broke sewer line in about a day and warned the community. Crews also recovered 108,000 gallons of sewage.

But he added that the Water Control Board is also investigating whether there was any "negligence" by the City of San Diego in following proper procedures for the spill.

If so, the City might have to pay $10 per gallon or a maximum of $65 million.

In 2001, San Diego had paid more than $1.5 million in fines for a spill in Tecolote Creek, according to the water control board.

This investigation could take up to two years to complete.

NBC 7 reached out to the City of San Diego for a response but we have not heard back yet.

A house fire in Vista left an elderly couple and their dog without a home.

According to North Comm Fire Department, the fire sparked in a garage inside a home on Paseo Marguerita and Paseo Cresta around 7:37 p.m. on Monday.

Officials say the couple and the dog were not hurt but a cat may have possibly died in the fire.

The garage fire caused an estimated $100,000 in structural damage and $70,000 in lost contents, according to officials.

Red Cross San Diego were asked to assist the family for housing. 

The cause of the fire is under investigation.

The man accused of terrorizing a San Diego neighborhood in 2015, bringing air traffic to a halt and shooting at police officers with a high-powered rifle, spurring a lengthy standoff, had an outburst in court Monday when his ex-girlfriend took the stand. 

At one point during the preliminary hearing, suspect Titus Nathan Colbert, 34, visibly frustrated, spoke up out of turn. 

"You're lying," he yelled at his ex-girlfriend as she testified in court. The judge gave him a warning, telling him to write it down instead. 

This is not the first outburst for Colbert. The suspect has been held in jail without bail since his arraignment, based on his bizarre behavior and attitude at his arraignment, where he interrupted court proceedings by yelling at the judge that he stands for a "new world order."

Colbert, a documented gang member from San Diego’s Skyline area who had most recently been living in Las Vegas, faces multiple felony charges including three counts of attempted murder. If convicted on all charges, he faces a maximum of 105 years in prison.

Colbert's attorney has pleaded not guilty on his behalf at a November arraignment. He underwent two mental evaluations over a period of several months and was found to be competent to stand trial. 

After his most recent outburst, Colbert sat quietly, holding his hands together, often times shaking his head in disagreement. 

During the first day of his preliminary hearing, his ex-girlfriend took the stand, testifying that they had long broken up after a history of domestic violence. 

But in the days leading up to the standoff, Colbert showed up at her apartment, she testified; he then sent dozens of text messages she said were 'very alarming.'

"It caused me to believe that there was something wrong, whether he was gong to break into my house or going to do something to try and get in touch with me, but the situation kind of escalated," she testified.

On Wednesday, Nov. 4, 2015, officers with the San Diego Police Department (SDPD) were called to 2445 Brant Street in the Bankers Hill community to investigate a report of domestic violence involving Colbert.

That disturbance call escalated into a SWAT standoff between law enforcement and Colbert, who was armed with a long-range assault rifle. Holed up inside an apartment unit, Colbert began spraying bullets, narrowly missing SDPD officers.

At a previous arraignment, Deputy District Attorney Michael Runyon said Colbert fired shots at three officers during the standoff, hence the three counts of attempted murder.

The SDPD said Friday that one of those officers, identified by the department as Officer Carlos Estrada, a four-year veteran, returned fire. A second officer who also exchanged gunfire with Colbert was identified by the SDPD as Matthew C. Hone, an eight-year vet of the department.

Throughout the standoff, Colbert also allegedly fired random shots into the approach path used by pilots landing aircrafts at San Diego’s Lindbergh Field, which is less than two miles from Brant Street.

The threat to public safety was so great that police shut down traffic in the area, blocking off multiple streets, and ordered residents to shelter in place. At the same time, the Federal Aviation Administration (FAA) issued a ground stop for arrivals into Lindbergh Field, which ultimately caused 140 flights to be impacted or delayed.

At around 2:40 p.m., more than five hours into the dangerous standoff, Colbert was taken into police custody. Although the community was badly shaken, no one was hurt in the ordeal.

Runyon said 17 shell casings had been recovered by SDPD investigators at the scene of the Bankers Hill shooting, though he did not know exactly how many total rounds were fired during the standoff, as the investigation is ongoing. Runyon said the suspect was in possession of three firearms.

Colbert is no stranger to the criminal justice system. Court documents obtained by NBC 7 Investigates show he is a documented gang member with an extensive criminal history dating back to his teenage years. His record includes arrests in San Diego, as well as arrests in San Bernardino, Calif., and Arizona.

Most recently, Colbert was charged with five felonies, including selling the party drug Ecstasy to an undercover officer in a drug deal outside a Black Angus restaurant on Friars Road. Colbert was also implicated in another drug deal at the drive-thru of an In-N-Out restaurant in Mission Valley.

In 2012, Colbert pleaded guilty to selling narcotics and served one year behind bars.

An NBC 7 source in the legal community says Colbert is the brother of convicted killer Tecumseh Colbert, a man currently on death row for two 2004 murders.

The ex-girlfriend will be back on the stand on Tuesday. The prosecutor says he expects the hearing to last two or three days.

A person with active tuberculosis may have exposed others at two Chula Vista elementary schools in the past several months, the San Diego County Health and Human Services Agency (HHSA) said Monday. 

The person, who recently began treatment for active tuberculosis, spent time at both Harborside Elementary School and Castle Park Middle School, health officials said. It is unclear if the person is a student, teacher or employee. 

HHSA officials are working with Chula Vista Elementary School District and the Sweetwater Unified School District officials to notify people who may have been exposed to the disease.

At Harborside Elementary School, located at 681 Naples St. in Chula Vista, the exposure period is from March 15 to June 6. School officials will offer free testing for students who may have been exposed on Aug. 31. 

At Castle Park Middle School, located at 160 Quintard St. in Chula Vista, students have been exposed from July 20 to Aug. 10. The school will offer free testing for students who may have been exposed on Aug. 31. 

TB generally requires many hours of close, sustained indoor contact to spread. 

“Most people who are exposed to TB do not develop the disease, but when it does occur, it can be treated and cured with medication; that’s why it’s important to identify those who have been exposed,” said Wilma Wooten, M.D., M.P.H., County public health officer, in a statement. 

Symptoms of active TB include a cough, fever, night sweats and unexplained weight loss. 

According to health officials, TB has been decreasing in San Diego County, though it is not uncommon, Wooten said.

There have been 132 cases of TB reported in the county in 2016 to date. There were 234 cases reported last year and 220 in 2014. 

Call the County TB Control Program at (619) 692-8621 for more information about the potential exposure.

San Diego Chargers have reached an agreement with defensive end Joey Bosa, the team announced Monday.

In their post on Twitter, the Chargers say they signed the team's top draft pick to a four-year contract.

“We look forward to having Joey join us and getting him prepared as quickly as possible for the 2016 season,” General Manager Tom Telesco said in a written news release.

The team did not release details on the agreement, but NFL reporter Ian Rapoport said he knew the contract details immediately after the announcement.

Basically that means Bosa cannot be paid by two teams at the same time if he ever left the Chargers under this deal.

According to league sources, the team agreed to give Bosa a $17 million dollar signing bonus. His entire 4-year contract is also fully guaranteed. On the other end, it's reported that Bosa's camp agreed to let the Chargers include offset language, which has been a staple for the Bolts in contract negotiations. 

During his press conference at Chargers Park Monday afternoon, Bosa said he was not involved in the business aspect of the negotiations. 

"We just wanted what’s fair and what people in my position have gotten through the last five, six years," said the defensive end. "So we came to a fair deal and there’s no animosity towards any of us. Me towards them, or them towards me, and we’re all just looking forward."

The rookie, out of Ohio State University, said he tried his best to stay off of social media while his contract was being finalized. He even went as far as deleting the Twitter and Instagram applications from his phone to keep the negative comments out of sight.

"I know it's all noise and the second I make a good play they'll all be on my side again," said Bosa of the angry social media followers. 

While Bosa stayed away from social media, his mother, Cheryl, made headlines with her Twitter and Facebook posts criticizing the Chargers.

"What do you expect a mom to do? She loves me. She wants what's best for me," said Bosa of his mother's comments. "She made a dumb decision like I have before, saying something she shouldn't have said on social media. She honestly didn't know it was public. She thought she was sending it to someone else. Leave it to mom to mess up on Facebook."

Chargers Head Coach Mike McCoy also spoke about Bosa's return to San Diego.

"We'll take it one day at a time. He came in great shape," said Mccoy when asked about getting Bosa up to speed. "He came in great shape and when we think he's ready to go out there and play, he'll be out there with us."

The team has not officially announced if Bosa will play in the last preseason game against the San Francisco 49ers at Qualcomm Stadium this Thursday, but he will be joining his team at practice for the first time since signing his contract on Tuesday. 

Hackers based in Russia were behind two recent attempts to breach state voter registration databases, U.S. intelligence officials tell NBC News.

One official said the attacks have been attributed to Russian intelligence agencies.

"This is the closest we've come to tying a recent hack to the Russian government," the official said.

That person added that "there is serious concern" that the Kremlin may be seeking to sow uncertainty in the U.S. presidential election process.

The incidents led the FBI to send a "flash alert" earlier this month to election officials nationwide, asking them to be on the lookout for any similar cyber intrusions.

The bulletin does not identify the targeted states, but officials told NBC News they were Illinois and Arizona.

Up to 12 people, including local bouncers, could face criminal charges in the death of an Emergency Medical Technician (EMT) following a fight in San Diego's iconic Gaslamp Quarter, a San Diego Police Homicide Lieutenant said. 

Conner Kepple, 21, was involved in a 'violent confrontation' at a bar near E Street and Fourth in the Gaslamp Quarter on March 5, five days before his death.

He did not immediately seek medical attention. However, in the days after the fight, he went to the hospital three times. 

According to the medical examiner’s investigative report unsealed Saturday, Kepple visited Sharp Grossmont Hospital on March 6 with pain to his left thigh. Medical staff released him with pain and anti-inflammatory medication.

Kepple went to Sharp Grossmont Hospital the following day “with complaints of worsening pain and onset of nausea and headache. Medics treated and released Kepple with ‘possible compartment syndrome.’”

The next morning on March 8, physicians asked him to return to the hospital. When Kepple arrived at the hospital, physicians say he was septic and required intubation. They diagnosed him with necrotizing fasciitis, a rare flesh –eating disease, and he “underwent massive debridement of the left thigh, flank and abdomen.”

The ME report says Kepple’s condition continued to deteriorate and his family ultimately “elected to withdraw care.” Kepple died March 10, on his 21st birthday.

The Medical Examiner's office ruled his death a homicide due to “complications of blunt force trauma.” 

SDPD Homicide Lt. Manny Del Toro said his unit had considered homicide an option all along, and have now turned the case over to the District Attorney's office to evaluate for potential criminal liability. 

"It wasn't a clear cut case for us. No arrests have been made," Toro told NBC 7 San Diego. "That's why we sought the assistance of the district attorney's office to help us sort this out as far as criminal liability in this case."

Toro said detectives have identified up to 12 people who were hands-on with Kepple between the night of March 4 into the morning of March 5. They can now link that night with his untimely death on the 10th, with the help of the ME's office, Toro said. 

During their investigation, authorities have interviewed witnesses, reviewed surveillance video, and more. 

Toro said one or possibly all 12 of the individuals the department has identified as hands-on with Kepple could potentially face criminal charges. At least one of the suspects are local bouncers in the area, Toro said. As of Monday, Toro said they do not know which suspects will be charged. 

"As far as some of the egregious acts that occurred, we have identified individuals who we believe intended to hurt Mr. Kepple that evening," Toro said.

The challenge investigators faced when looking into Kepple's death was the space of time between his injury and death, Toro said. 

"The challenge initially was that the death occurred on the 10th, which is when the homicide unit inherited the case," Toro said. "So we had to trace anything back to basically anything that happened potentially between March 5th and the 10th, which potentially could have killed him, if there was such an incident...But then again, we also had the challenge of, was it an incident that occurred inside a business out on the sidewalk, and when did it occur?"

Kepple worked for MaxCare ambulance as an EMT. He is survived by his parents, an older brother and a younger sister.

Scripps Health has entered into a decades-long partnership with one of the nation’s leading cancer research centers that will lead to greater access to  treatments and clinical trials.

MD Anderson, based in Houston, Texas, is one of 45 National Cancer Institute-designated comprehensive cancer centers.

The Scripps MD Anderson Cancer Center will provide treatment options for those living in eight counties in California - from Santa Barbara to the U.S.-Mexico border.

Scripps Health President and CEO Chris Van Gorder used the word “extraordinary” to describe the opportunity to partner with one of the nation’s leading cancer centers.

“By partnering with an organization whose sole focus is cancer and all the different kinds of cancer we’re going to have the latest protocols to take care of our patients,” Van Gorder said.

There will be some recruiting and construction of buildings over the next few years. There will be a hub near La Jolla and another location near Scripps Mercy Hospital.

There is a plan is to create comprehensive Scripps MD Cancer Center locations. Officials said they will release specific locations over the next several months.

What may be most important to those battling cancer will be the access to clinical trials managed by MD Anderson.

“We’re very interested in expanding access to clinical trials in communities like San Diego,” Ronald A. DePinho, M.D., President, University of Texas MD Anderson Cancer Center said.

“If you have advanced disease you need multi-disciplinary care and you also need access to clinical trials if you fail that standard of care,” DePinho said.

San Diego Mayor Kevin Faulconer and other elected officials gathered to celebrate the announcement. He said the agreement is transformative not only for San Diegans but for the Southern California region.

“This is life-changing work that’s going to happen right here in our community,” Faulconer said.

The two companies will begin working together immediately. You can learn more about the partnership through Scripps Health.

In the rolling hills of southern Puerto Rico, in the 500-year-old village of Coamo, the music blares from the back of a pickup truck rolling through neighborhoods.

The song warns about the dangers of mosquitoes that carry Zika virus.

As the music gets the attention of residents, a small army of city workers, including the town’s mayor, goes door to door handing out kits with mosquito repellent. Insecticide is sprayed nearby.

The scene in Coamo, a picturesque, mostly Catholic town miles from the beach, is playing out across Puerto Rico.

The prevention efforts are in response to startling numbers showing that Zika is spreading wildly all over the island.

"This is dangerous to our people, to the ladies, to the old people," said Coamo Mayor Juan Carlos "Tato" Garcia Padilla. "We need the help of our people."

Some 2,000 people a week are getting infected and, if current trends hold, a quarter of the island’s 3.5 million people could get Zika by the end of this year, according to the Centers for Disease Control and Prevention.

Even the many people who show no symptoms can become carriers without knowing it. Tourists can unknowingly carry the virus back to the mainland.

Health experts fear the real impact will be on babies born with life-long disabilities.

The spread of the Zika virus has prompted the World Health Organization to declare an international health emergency. Carried by the Aedes aegypti mosquito, Zika can cause microcephaly in babies, who have unusually small heads and brain damage. A recent study of brain scans of Brazilian babies showed other damage as well.

In adults, Zika virus is also linked with Guillain-Barre syndrome, a form of temporary paralysis, according to the CDC.

There is no vaccine or medicine for Zika.

Zika emerged in the Americas in mid-2015 and since then outbreaks have occurred in multiple South American and Caribbean countries, and now Florida, according to the CDC.

Dr. Judibelle Rivera, an obstetrician and gynecologist in Coamo, is telling patients to wait a year or two before getting pregnant.

She passes out free government-provided birth control, even though fewer pregnancies mean her practice will take a financial hit.

"It's worth it because having babies with something like a handicap for the rest of their lives, that's not good,” she said.

Dr. Nabal Bracero, who runs a fertility clinic in San Juan, echoed her concerns.

"It is a nightmare,” he said. “It is the worst situation you can have in terms of public health."

Some 1,314 pregnant women in Puerto Rico have tested positive for Zika, the CDC said. The numbers are climbing.

Dr. Brenda Rivera heads the fight against the epidemic for the Puerto Rico Health Department.

"I'm at the forefront of the response, so for me it's not just a number," she said. "When I see these numbers go up, it's not just a number, there's a family, there's an individual behind that number. And for me that's very real."

Emergency responders are fanning out across the island, led by Puerto Rico’s emergency management director Angel Crespo.

"It's kind of crazy stuff to deal with it,” said Crespo, who is also the island’s fire chief. "Right now we are incorporating artists. I’m a musician too."

He wrote the Zika prevention song they were playing in Coamo and even made a music video posted on YouTube.

“Ten cuidado del mosquito te pica,” the song starts. It means, “Be careful of the mosquito biting you.”

"We need to explain this seriously, loud and clear, so people can understand how serious is the Zika virus,” Crespo said.

The US government, including a team from the CDC, is helping organize the growing response.

Standing water, especially around houses, has become a target.

The effort reaches to places you might not expect -- even cemeteries. That's because the water in the vases for flowers are mosquito breeding grounds. Workers have turned many of the vases upside down.

But the challenges are monumental. The tropical climate in Puerto Rico means it rains frequently. Puddles form everywhere.

And there are other challenges.

Plans for aerial spraying got shelved amid a public outcry about chemicals being dropped from the air.

The Zika scare comes as Puerto Rico is in the middle of a financial crisis. It can’t pay billions of dollars in debt and tourism is one of the only bright spots in the economy.

Money from the federal government to fight Zika is slow to make it to the front lines.

Even with better funding, the kind of mosquitoes that carry Zika are especially hard to kill.

"There is one insecticide that is working better than the others, but still there is widespread resistance to it," said Dr. Roberto Barrera, chief of entomology for the CDC.

The CDC is advising pregnant women not to go to Puerto Rico and telling visitors to wait at least eight weeks before trying to get pregnant.

Despite the threat, the head of Puerto Rico’s Hotel and Tourism Association said the island is open for business.

“You have to look at the facts – facts versus the fear,” said Clarisa Jimenez.

She called estimates that a quarter of the island could become infected a “worst-case scenario,” but acknowledged pregnant women should stay away and urged everyone to wear repellent.

Many hotels remain busy and tourists still flock to Old San Juan to visit the fortified beach-front walls that have helped defend the island for generations.

Dallas/Fort Worth International Airport offers daily nonstop flights to the capital of San Juan.

As a U.S. territory, Puerto Rico is neither a state nor a country. Its 3.5 million residents are American citizens.

A New York man visiting a San Juan beach said he felt safe.

“You’re a little precautious, you know, but it’s not going to beat the vacation,” Diego Suiter said.

Back in Texas, through Aug. 29, there have been 133 confirmed cases of Zika virus this year. This count includes six pregnant women, two infants infected before birth, and one person who had sexual contact with a traveler. Harris County has had the most cases with 35, but is followed closely by Dallas County with 30. Elsewhere in North Texas, Tarrant County has reported 17 cases, Collin County three and Denton County four.

Incumbent U.S. Sen. John McCain is running for re-nomination in Arizona's primary election Tuesday, and he is expected to defeat his leading opponent, former state senator Kelli Ward. For her part, Ward has adopted a Trump-like style of rhetoric during her campaign, highlighting the scourge of illegal immigration and opposing amnesty measures for the undocumented, NBC News reported.

Trump has endorsed McCain, though earlier this campaign cycle he disregarded the 80-year-old senator's status as a war hero. McCain has also agreed to support Trump's presidential run, even though he came out against the real estate mogul's statements about the parents of a fallen soldier who spoke against Trump at the GOP convention.

An unexpected loss for McCain in the primary would indicate a rising backlash against establishment GOP politicians. McCain is also predicted to defeat the favorite potential Democratic nominee, Ann Kirkpatrick, in a general election, though the Democratic contender is expected to use McCain's endorsement of Trump against him.

Former U.S. Seventh Fleet Surgeon Capt. Joel Roos will assume command Aug. 30 of Naval Medical Center San Diego, relieving Capt. José Acosta, who will become lead medical officer of the locally based U.S. Third Fleet, the military announced.

Acosta led NMCSD through operational and medical milestones that improved medical readiness and enhanced the patient experience for the 125,000 beneficiaries enrolled to the hospital, according to a news release from the medical center.

The Virginia native called the transition “truly a bitter-sweet moment,” saying in the release he leaves behind “an amazing organization” even as he looks forward to tending to the health and well-being of the Third Fleet, which encompasses sailors and marines aboard ships, submarines and aircraft stationed in California, Washington and Hawaii.

Roos, an emergency physician by trade, is the 43rd naval officer to lead NMCSD. He previously served at the medical center in 2009 as deputy commander.

A Cincinnati native, Roos was responsible for operational medical planning and execution at the Seventh Fleet, where he was also in charge of theater security cooperation engagements throughout the Western Pacific Ocean.

Two men in Canada believe they were switched at birth at a federally run hospital in a remote region of the country 41 years ago — the second such mix-up the hospital experienced that year, NBC News reported.

The friends, David Tait Jr. and Leon Swanson, were born three days apart at Norway House Indian Hospital in northern Manitoba in the winter of 1975.

Members of their tiny indigenous community always joked that the two resembled the others' parents, Swanson told reporters last Friday at a news conference in Winnipeg. The two decided to undergo DNA testing after another set of men discovered last November through DNA tests that they had been switched at birth at the same hospital, also in 1975.

Health Canada is reviewing files from the hospital during that time period and has hired "an independent third party to do a dedicated and thorough investigation of all available hospital records from the period to determine what happened and whether there is any other cause for concern beyond the two cases identified," Canada's health minister said in a statement that was emailed to NBC News.

Even without Swanson's results officially in, the men were overwhelmed with emotion when speaking about being sent home with the wrong families as newborns.