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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) - A San Diego mother and daughter who both have Type 1 Diabetes are navigating the disease together.Keary and Zola Chaney are among the first to use a new device which sends life-saving alerts to your smartwatch or cell phone.The Dexcom G6 is a small sensor that monitors blood sugar levels 24 hours a day and requires no finger-pricking. The FDA-approved sensor is easy to put on and can be worn for 10 days. "I feel like I have more control and diabetes has less control over me, which is the most freeing feeling in the world," said Keary, Zola's mom. Keary says Dexcom, a San Diego-based company, is not only simplifying their lives but also saving them, especially when their blood sugar levels get low. Keary can monitor both her and Zola's blood glucose levels on her smartphone, even if they're thousands of miles apart. The device will be readily available to consumers in June and is covered by most insurance companies.   1007

SAN DIEGO (KGTV) -- A San Diego native is back home after the Camp Fire forced him out of his school. Angel Gonzalez is a third-year student at Chico State University. Campus officials canceled class on Thursday when the fire broke out and then announced the campus would be closed for two weeks. The university is not currently threatened by the Camp Fire but the air quality is poor. Gonzalez says leaving the campus was chaotic and crowded with everyone trying to get out. He’s now worried about his professors, many who own properties in Paradise.Classes at Chico State are set to resume on November 26th, the Monday after Thanksgiving.   680

SAN DIEGO (KGTV) - SAN DIEGO (KGTV) - It’s not easy to break into San Diego’s housing market, but what happens when you finally make that big purchase? Zillow and Thumbtack ranked San Diego third in the nation for the hidden costs of homeownership.The housing analysts broke down the expenses of maintaining a home in addition to a down payment and monthly mortgage payments. Unavoidable costs, including property taxes, insurance and utilities, were a factor, along with routine maintenance.In San Diego, the hidden costs amounted to ,257 a year, with unavoidable expenses of ,087 and maintenance at ,170.RELATED: Nearly 1K?salary needed to buy San Diego homeThe national average for the hidden costs of homeownership was ,390. In San Jose, the figure reached ,655. San Francisco was slightly lower at ,758. Indianapolis was the cheapest city in the nation, with ,220 going toward hidden costs.“Ongoing maintenance costs and annual fees are some of the most common surprises for first-time home buyers after they finally become homeowners. While they are shopping, buyers tend to focus on their monthly mortgage payments, but other needs quickly add up after move-in,” said Zillow Senior Economist Aaron Terrazas. “The list price is just the beginning of understanding the costs that come with being a homeowner, and it’s important to understand what other expenses you may have to account for when determining what you can afford.”RELATED: 5 Most expensive cities in San Diego CountySmart Asset has a property tax calculator for homebuyers.Wondering where your property taxes go? The County of San Diego has a breakdown. 1656

SAN DIEGO (KGTV) - USD head men’s basketball coach Lamont Smith is free Wednesday pending an investigation on domestic violence charges in San Francisco.The San Francisco Police Department released Smith's mugshot from Sunday's arrest. Smith was taken into custody at the Oakland airport just before the team was set to fly home from a game.Smith is accused of three domestic violence charges involving a woman at the team's hotel late Saturday night. She was taken to the hospital for treatment of her injuries.The woman told police she and Smith, who is married with two children, were intimately involved.RELATED: University of San Diego basketball coach Lamont Smith arrested on domestic violence chargesThe University of San Diego said the woman is not a student or employee at the school.USD Assistant Coach Sam Scholl has been appointed head coach for the entire post-season.  906

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