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SAN DIEGO (KGTV) — Even though Americans could start getting vaccinated in days, experts say people who get the shot will still need to wear masks and practice social distancing until scientists can answer a key question: whether immunized people can continue to spread COVID-19.The clinical trials by Pfizer and Moderna showed the two vaccines were about 95 percent effective, but what that really means is they were 95 percent effective at preventing COVID-19 symptoms.The trials did not measure whether vaccinated volunteers got infected without showing symptoms.That means “it is possible and conceivable” that immunized individuals could still be silent spreaders, said Dr. Christian Ramers of Family Health Centers of San Diego. “You’re not going to get sick, but you still get an asymptomatic case, pass it on to your grandmother and kill her.”Both the Pfizer and Moderna vaccines are injected into the arm muscle to stimulate production of antibodies. From there, the antibodies can quickly get to the lungs to fend off severe infection. But experts say the antibodies may have less access to the nose and throat, the primary entry points for the virus.Some studies have suggested that people without symptoms can still have high enough levels of coronavirus in their nose to infect other people.“The vaccine is doing something to prevent disease. We don't really know yet if it prevents transmission,” said Dr. Ramers. “So we have to fall back on all those fundamental things like distancing, masking and washing hands.”Still, experts say there are encouraging clues that vaccinated people may be less contagious. A study in October found antibody levels in the blood were similar to levels in saliva.AstraZeneca had volunteers in its trial test themselves for signs of infection and reported there were fewer asymptomatic cases. However, the company has not yet provided details and its vaccine relies on different technology than Pfizer and Moderna’s mRNA candidates.Until we know more, doctors say vaccinated people will have to keep wearing masks -- potentially until there we achieve herd immunity.“There is modeling to suggest that it will be summer until we reach the point where there are enough people vaccinated that this curve of new cases really starts to go down,” Ramers said.There’s a chance we could get good news before then. Both Pfizer and Moderna say they’ll start testing their volunteers’ blood to reveal if they got infected after vaccination.Pfizer plans to examine a subset of its volunteers. Moderna said it will analyze blood from everyone in the trial.Moderna said it will take several weeks to produce results. 2656

SAN DIEGO (KGTV) — Hundreds of residents at “The Cliffs” mobile home park in Allied Gardens are fed up after living without running water since Thursday. The community consists solely of 55+ senior citizens, and many of them live alone or have limited mobility. "It's really kind of a pain in the neck,” 85-year-old resident William Shakespeare said. Like many of his neighbors living in the lower portion of the Cliffs, Shakespeare lost water since early Thursday. Luckily for him, his longtime girlfriend Suiko Paul is quite mobile. She became the go-to person for water supply for the entire street. "Elderly people live here. They don't drive. Somebody has to help them,” Paul said. She was been swamped. "She hauls water like crazy,” laughed Shakespeare. 10News met the on-site property manager as he and two others were digging a hole in the asphalt. He stepped away from the camera to tell us two old pipes burst on opposite ends of the mobile home park Thursday morning. Since then, he said he had been doing everything he can to fix the problem. But residents like Shakespeare and Paul did not want to see three people trying to fix a major water leak problem affecting more than 200 residents. "He's been here since Thursday, and they've been digging, but they're not sure where they're digging,” Shakespeare said. Many residents appreciated that the manager was trying to handle the problem himself, but they said it had gotten out of control. Like many of her neighbors, Paul said she had not taken a shower for four days, and she had gone to a friend’s house to wash dishes.The Red Cross began mobilizing at the clubhouse and doing door to door well-fare checks. But for many of the seniors, patience is running out."It seems like forever…. Not having water, I don't know what could be worse. Not having air, I guess,” Shakespeare said. The city is aware of the problem. But because the pipes are under private property, the owner of the entire mobile home park must have them fixed themselves before the city can turn the water back on. 2059

SAN DIEGO (KGTV) -- Health officials said Wednesday that they are working with the Grossmont-Cuyamaca Community College District to notify people possibly exposed to tuberculosis. Officials said the possible exposures happened at the college’s El Cajon and Rancho San Diego campuses between January 30 and April 24, according to County News Service.The college will be providing no-cost screenings to people who are identified as possibly having been exposed to TB.“Symptoms of active TB include persistent cough, fever, night sweats and unexplained weight loss,” said Wilma Wooten, M.D., M.P.H., County public health officer. “But most people who are exposed do not develop the disease and TB can be treated and cured with medication.”The San Diego County Health and Human Services Agency says it’s important for individuals with symptoms of TB, or who are immune-compromised to see their medical provider to rule out TB. 940

SAN DIEGO (KGTV) — For the first time in San Diego Zoo history, an echidna baby, commonly referred to as a puggle, has hatched at the San Diego Zoo Safari Park. Zoo officials say the tiny animal is estimated to have hatched on Feb. 14, 2020. Echidnas only breed once a year, before the mother lays an egg about the size of a grape and keeps it in a pouch in her abdomen. After seven to 10 days, a tiny puggle smaller than a jelly bean hatches. It attached itself to hairs within the mother's pouch, where it feeds on milk. Around six to eight weeks old, the puggle develops spike spines and the mother places it in a specially made nursing where she feeds it every three to six days.The puggle's mother, named Orange, and father, Shaw, also reside at the Safari Park. The tiny, spiny Australians species will spend most of its day sleeping, growing, and developing in its burrow.“We are thrilled and excited to welcome our first-ever echidna puggle at the San Diego Zoo Safari Park,” said Savanna Smith, wildlife care specialist, San Diego Zoo Safari Park. “It is an honor to care for this little one, as we learn more about this species’ reproduction through this puggle’s hatching. Mom and puggle are doing extremely well, and we will continue to monitor the puggle’s progress until it is ready to venture out on its own.”Echidnas are one of only two Australian mammals that lay eggs, the other being a platypus. They are notoriously difficult to breed in managed care, the zoo adds, making this even more momentous for the zoo.The sex of the animal has yet to be determined.It is expected that the young puggle will start venturing out on its own at about six to seven months old. Guests will however be able to see adult echidnas on occasion in the animal ambassador area in the park's Walkabout Australia habitat. 1827

SAN DIEGO (KGTV) — Happy birthday, SeaWorld San Diego!The park will celebrate its 55th birthday this week with deals for guests and special in-park entertainment. Since the park's opening on March 21, 1964, nearly 175 million people have visited the aquatic theme park.Not only has the park educated through its attractions, but through its conservation, research, and rescue arms as well.RELATED: SeaWorld San Diego offering unlimited 2019 admission passes for preschoolers, teachersAnd guests can save on the celebration. Through Thursday, special weekday tickets are being offered online here. The tickets can be used Monday through Friday on any weekday through April 30. Limited time discounts on other park passes are also available.The party kicks off with five musical performances a day by the Sea Street Band and celebration moments during Orca Encounter, Dolphin Days, and Sea Lion Live shows from March 21-24. At the Mission Bay Theater, a 55th celebration video will run daily through Memorial Day.On Thursday, parkgoers will be given free parking and can enjoy 55 cent souvenir bottle refills and .50 churro or popcorn and soda combos. RELATED: SeaWorld San Diego says new dive coaster 'Mako' coming in 2020Through March 31, discounts on SeaWorld throwback t-shirts and retro collectible pins will be available, and through April 18, discounts on SeaWorld 55th celebration shirts will be offered. 1424