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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) -- Traveler satisfaction stagnated year-over-year as airports struggle to keep customers happy, according to J.D. Power. According to the report, construction projects and passenger volumes are at least partly responsible for the trend. San Diego International ranked 13th out of 27 in the large airport category, with a score of 774 out of 1,000. To reach the conclusion, the report looked at six factors: Terminal facilities; airport accessibility; baggage claim; security check; check-in/baggage check and food, beverage and retail. “With major terminal construction projects now underway in Los Angeles, Boston, Chicago, Atlanta and many other airports, it is becoming impossible for travelers not to experience some form of disruption,” said Michael Taylor, Travel Intelligence Lead at J.D. Power. “While these projects are absolutely necessary to address surging demand, they are currently causing passenger delays and confusion. This translates into a rushed passenger experience and less money spent on food, beverage and retail—and it’s slowing the progress of the airport satisfaction we’ve seen in the past several years.”Meanwhile J.D. Power says the experience of getting through security at the airport has improved by five points. The study is based on responses from more than 32,000 U.S. or Canadian residents who traveled through at least one U.S. or Canadian airport that covers both departure and arrival experiences over the last three months. Click here for the full report. 1523

SAN DIEGO (KGTV) - Two fires sparked Saturday afternoon in East County, in addition to a thunderstorm in Pine Valley, created dicey conditions for firefighters.Cal Fire Captain Thomas Shoots said the humidity made a huge difference, "the monsoonal moisture the stickiness has been good because it's helped keep our fires small," slowing the spread of flames.The Bratton Fire sparked in Lawson Valley around 1:30 p.m. and scorched 4 acres. Then around 2:10 p.m., the Sloane Fire started burning in Dehesa, blackening 18 acres.Both were knocked down quickly."We hope that people don't get complacent that we've hit these fires very aggressively and it's worked out," Shoots said.He said if we didn't have the humidity we would be in trouble, "there's a lot of fuel that comes with a good winter so that grass crop is all cured out and ready to burn."Shoots said they were keeping their eye on the thunderstorm in Pine Valley.The National Weather Service reported a severe thunderstorm warning with quarter-sized hail and gusts up to 60 miles per hour."We knew it wasn't going to be to the extent that the north saw when the storms rolled through but it was still definitely a potential concern," Shoots said.Looking forward, Shoots says we need to be very careful, "San Diego and a good chunk of California is sitting at a higher potential for wildfire activity in October-November."He advises creating defensible space around your home not only to protect your home but protect your family if you can't escape in time.Shoots said he hopes firefighters are able to get a handle on the fires in Northern California and stay safe.He said 96% of all Cal Fire engines are working, which shows how extreme this fire season is.More than half of Cal Fire San Diego's resources have been sent up north to help, including 32 engines. Shoots says local fire departments are stepping up to help in their absence. 1907

SAN DIEGO (KGTV) --  On Monday a settlement was reached in two cases against San Diego Sheriff's Deputy Richard Fischer. Those settlements come to a total of more than 0,000. 10News has been covering the story since November when a victim shared her story with Reporter Steve Fiorina. The Sheriff's Department opened an investigation into Fischer last fall after a woman claimed he groped her while responding to a service call.The investigation then expanded to more than a dozen incidents against Fischer dating back to 2015.RELATED: San Diego County sheriff's deputy accused of sexual misconduct pleads not guiltyThe 32-year-old deputy is on unpaid leave and out on bail pending criminal court cases. At his February arraignment in a Vista courtroom, Fischer pleaded not guilty to all charges. He will have a hearing later this month.RELATED: 7th woman accuses San Diego County Sheriff's Deputy Richard Fischer of inappropriate behavior*This is a developing story. 10News is working to interview one of Fischer's accusers for 10News at 11 p.m. Tuesday.  1107

SAN DIEGO (KGTV) - Uber will remove all rental bikes and scooters from San Diego next week, the company said Thursday. The rideshare company, which expanded into rentals, will cease its two-wheeled operations Sept. 19. Uber will continue to operate in partnership with Naval Base San Diego and Naval Base Point Loma. “We agree with local elected officials in San Diego who’ve said current micromobility regulations foster an unsustainable operating environment, which is why we’re ending our operations as of today. We look forward to working with the city to develop more sensible regulations,” a company spokesperson told 10News. "This is simply a market correction in an oversaturated industry that jeopardizes the safety of San Diegans and visitors. I continue to call for a moratorium on electric scooters until we develop a fiscally responsible and well thought-out plan that priorities public and environmental safety," said City Councilwoman Barbara Bry.In May, the San Diego City Council implemented new regulations for dockless scooters as a way to increase public safety while also allowing the companies to stay in San Diego. Companies were required to pay a permit fee of about ,000 every six months, create corrals, and enforce a speed limit as low as 3 miles per hour in certain areas. The rules also banned parking scooters near schools, hospitals, or near Petco Park.Uber brought the red and black JUMP e-scooters and bikes into the San Diego market in fall 2018, offering free rides during the introductory period. The scooters are currently available in 13 U.S. cities, according to Uber’s website. JUMP bikes are available in 20 U.S. cities. “We plan to work with the city to help build sensible regulations in the near future and look forward to returning to San Diego in the future,” Uber officials said. 1836