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SAN DIEGO (KGTV) — Two new studies published this week suggest people with blood type O have a lower likelihood of catching COVID-19 and developing severe illness than people with other blood types.Blood type is a characteristic we inherit from our parents and there are four major blood groups: A, B, AB and O.Danish researchers looked at nearly 500,000 people who tested positive for COVID-19 and found that people with type O were underrepresented.In a study published in the journal Blood Advances, the researchers found 38.4 percent of those infected had type O when that type actually makes up 41.7 percent of the population in that area.The researchers say the findings suggest people with type O are less likely to get infected in the first place.On the other hand, the team found that people with type A blood were overrepresented: 44.4 percent of those infected had type A compared to an expected value of 42.4 percent. The researchers suggest people with type A might be more at risk.Another study, also published in Blood Advances, looked at 95 critically ill patients in Canada. They found people with type O or type B blood tended to have a shorter stay in the intensive care unit, an average of nine days for those blood types compared to 13.5 days for people with type A or AB.They also reported that people with type O or type B were less likely to need a ventilator, with 61 percent of cases requiring mechanical ventilation compared to 84 percent for people with blood type A or AB.“Yes, there may be some of these associations. I don't think it's fully understood at this point,” said Dr. Christian Ramers of Family Health Centers of San Diego, who was not involved in the studies.The science on COVID-19 risk and blood type is mixed. These two new studies align closely with a previous study in China and another in Europe, but a third study in the U.S. found no significant link between severe COVID cases and blood type.At this point, doctors aren’t sure why blood type might affect outcomes with the disease, but there are several theories.“The immune system is an incredibly mysterious and complicated thing that we don't fully understand,” Ramers said. “Blood type sort of plays into that because people with different blood types actually have slightly different immune systems and immune responses.”Your blood type impacts the kind of antibodies you produce. That is why it is so important in blood transfusions to get the right blood type; blood from the wrong donor can trigger antibodies that attack those red blood cells.People with blood type O have two sets of antibodies, known as anti-A antibody and anti-B antibody. People with type A or B only have one or the other.Researchers in the Canadian study hypothesized that the anti-A antibody in particular may help control the coronavirus. People with blood type O and blood type B produce this kind of antibody. Individuals with type A or type AB do not.People with blood type O also have characteristics that make them less prone to issues with blood clotting, a major issue in severe cases of COVID-19.Experts say that if type O blood is protective against the virus, it’s not by a large amount.And this protective benefit doesn’t extend to all pathogens. Past studies have shown people with type O are more at risk from a type of bacteria that can cause ulcers and cholera. 3369

SAN DIEGO (KGTV) -- With the unknown future of in-person education, the Cajon Valley Union School District has continued to welcome kids to campus since March, but not as students. They’re offering child care.“They’re getting topics that they typically wouldn’t always get during the school year. Fun, light topics more like a summer camp but still learning,” said Assistant Superintendent of Educational Services Karen Minshew.She said their priority is giving a safe place to stay for children as their parents go to work.Gov. Gavin Newsom and California health officials have laid out a plan stating counties have to be off the state’s monitoring list for 14 days before they can reopen schools. Minshew said even with this announcement, their current setup falls within the guidelines.“Nothing had changed in terms of the model for child care so yes there’s was information for schools and what’s possible for schools but not child care,” she said.Danica Mitchell has a son who will be starting first grade in the fall. She dropped him off at Chase Avenue Elementary School for the summer program and said she’s happy with the steps the school has taken to keep the students safe.“I’m emotional because I’m an essential worker so both my husband and I work and we need to work to support our family so it’s very important that my child have somewhere to go,” said Mitchell.Minshew said they are considering four different models for the fall term but no matter what happens regarding education and policies for having students on campus, they will be there to offer childcare no matter what. The four options the district is working with are home schooling, distance learning, a hybrid model (2 days at school, 3 days at home), or 100% At School. 1758

SAN DIEGO (KGTV) -- With some K-12 schools returning to in-person learning in San Diego County, more testing sites for school personnel will be available starting Thursday.The County of San Diego is partnering with the San Diego County Office of Education to open four new testing locations dedicated to testing of school employees. The first two will open in Chula Vista and San Diego on Thursday. Another site will open in Del Mar on Friday, and the last will open in El Cajon on Monday.South County school personnel (now open)650 L St.Chula Vista, 9191110:30 a.m.-6 p.m.North County school personnel (open 10/5)2260 Jimmy Durante Blvd.Del Mar, 9201410:30 a.m.-6 p.m.East County school personnel (open 10/2)301 N. Mollison Ave.El Cajon, 9202110:30 a.m.-6 p.m.Central San Diego school personnel (now open)2375 Congress St.San Diego, 9211011:30 a.m.-7 p.m.Capacity for all locations will be 500.County officials also said school staff and children could be tested at the county’s other 41 sites.Meanwhile, UC San Diego announced that only ten students tested positive for COVID-19 out of the 5,730 that moved into on-campus housing over ten days.“I think they have a very strong plan in place at UCSD for their students,” said Dr. Eric McDonald, the medical director for the County Epidemiology and Immunization Branch.The students that tested positive were moved into isolation housing provided by the university. They can move back into general campus housing when they are no longer infectious.The school launched a dashboard on its website to show the current number of positive cases for staff and students both on and off-campus.Students on campus will be tested for COVID-19 twice a month through the school year. 1728

SAN DIEGO (KGTV) -- A woman was arrested Monday afternoon after police say she stole a vehicle with two children inside in the San Diego area. Police say a father left his 3-year-old son and 8-year-old daughter in his car with the engine and air conditioner running around noon.After he went into a business, a witness reported seeing a woman get into the car and drive away with the children inside.Police say the 8-year-old was able to call police and tell dispatchers that she and her brother had been kidnapped.Roughly 30 minutes later, Border Patrol detained the suspect trying to cross the border into Mexico.Police have since taken the woman into custody. 680

SAN DIEGO (KGTV) -- Unions were the big winners as the San Diego Airport Authority decided to require contractors to enter into a project labor agreement in a 5-3 vote. PLA’s entail that unions will not strike and the airport will in turn run all the work through labor unions. Opposition to the PLA says they are worried the project will be even more costly to accommodate union dues and that non-union local workers will be excluded from the job. “It’s completely unfair,” said Steve Stroder, who represents” [they] are being told they can’t work on a project in San Diego.” Unions say their track record of completing marquee jobs on time like the county courthouse and under budget speaks for itself. “I mean we’ve proven that we can do this work,” said Keith Maddox of the San Diego Imperial Counties Labor Council, ”our workers are local.” The vote will be made after several hours of public testimony. 916