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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) - When you book a flight, your base price may not represent the final bill due to mounting airline fees. As 10News examines ways to make it in San Diego, we have solutions for saving money on travel.It's not your imagination: fees are part of the way airlines do business."Instead of just one price for everything, it's now an a la carte menu," said AAA spokesman Allan Gundy.The hidden charges don't just apply to your luggage. Gundy says fees can climb for seat selection, reservation changes and cancellation, beverages, and in-flight wifi.RELATED: Making It in San Diego: Getting to paradise on points this summerBefore you book, consider investing in a refundable ticket if you believe changes are possible. Also, many airlines charge higher fees to cancel within 24 hours of a flight, so act quickly if you know your travel plans need to be altered, AARP reports.Remember to download movies or games before you fly or, if you must have wifi, Grundy says to "sign up for a monthly subscription service like gogo, which is what most of the major U.S. airlines use."Food prices are high on planes, but you can buy snacks to take through TSA checkpoints and pick up beverages after security.RELATED: Making It in San Diego: What to know about using Tijuana airport's Cross Border XpressGundy also recommends you don't book the cheapest flight you find online because it may not be that great of a deal."Look at what all the additional fees would amount to and look at the total ticket cost," said Grundy.As for cutting down or skipping those fees altogether, there are a few things you can do. "There are airline branded credit cards that as a perk may offer free luggage," advises Gundy. You can also dodge fees by reaching out to a travel agent to find the best deals. 1798

SAN DIEGO (KGTV)- A Pacific Beach man says his community is in need of a cleanup. He's raised hundreds of dollars to get it done.According to resident Adam Huntington, overgrown grass, untamed trees, and grimy sidewalks are just some of the mucky issues surrounding Pacific Beach.Huntington has been living in Pacific Beach for at least two decades."You've got beautiful architecture, beautiful masonry, that's just getting covered by grime and dirt."Huntington shared a video with 10News of a cruddy sidewalk on Garnet Avenue, one of Pacific Beach's main streets."We're in the middle of a pandemic right now," says Huntington. "We have an extremely unhealthy, unclean environment, and we force all of our restaurants to go outside and serve people."He hired a private company to power wash another area of Garnet Avenue over the weekend. The funds were raised by a GoFund Me Page. The cost of cleaning was ,200."We have people all over this community, wondering where our services are."We asked the city about why it's not using its services to clean up the area. A spokesperson said they don't have a statement at this time but encouraged anyone with a concern about cleanliness to report it on the city's "Get It Done" app.The city also tells 10News residents do not need a permit to clean or power wash a sidewalk on their own, but they must have a plan to prevent runoff from going into the storm drain. Huntington says he went with an eco-friendly company that followed those guidelines.The former lifeguard says to keep the beach area looking nice, he replaced the wooden barrier posts along the road that surrounds Crown Point."The reason people come to San Diego is to enjoy Mission Beach and Pacific Beach."With the help of two local hardware stores, Huntington says he was able to acquire power tools to continue to help spruce up the neighborhood.As for the overgrown brush, the city says its weed abatement program is back online since being paused due to COVID-19. 1988

SAN DIEGO (KGTV) -- With recent headlines highlighting rattlesnake bites throughout San Diego County, you may be wondering what can be done to prevent bites, or in the unlikely event that you or a pet are bitten. According to the San Diego Humane Society, snake bites can happen year-round, but snakebite season spans from April through September when temperatures tend to be warmer.In the U.S., nearly 8,000 people are bitten by poisonous snakes each year. Health officials say even bites from “harmless” snakes can cause infection or allergic reaction.According to the county, the most common rattlesnake in San Diego County is the Southern Pacific, sometimes referred to as the Western Rattlesnake.This type of rattlesnake can be found near housing developments, parks and even on the beach.The county recommends several tips to prevent rattlesnake bites. The top tip it to just leave snakes alone. Check below for other tips on how to avoid snake bites: 970

SAN DIEGO (KGTV)- Across California, a record-breaking 3.7 million acres have already burned in more than 8-thousand wildfires this year.Both Cal Fire San Diego and the San Diego Fire-Rescue Department are preparing to respond to potential fire disasters, as dangerous weather conditions return to San Diego County.“We know the potential is there,” said Thomas Shoots, a public information officer for Cal Fire. “We’re holding all our firefighters on duty, and we’re staffing on every piece of equipment to make sure we’re covered, we’ve brought on contract dozers. We’ve asked that the other agencies that we work with here in the county provide resources, and they stepped up, and we’re very appreciative of that.”San Diego Fire-Rescue has also increased staffing and equipment.The National Weather Service extended a Red Flag Warning to Tuesday at 5 p.m. for the inland valleys and mountains.A heat advisory will also be in effect Tuesday through Thursday.Just weeks ago, the Valley Fire destroyed homes and charred more than 16 thousand acres in the East County.With similar weather conditions, fire crews hope community members will try to reduce the possibility of a fire sparking.“If everybody could do their part, anything they can think of that can start a fire, whether its dragging chains down the highway, clearing brush with metal motors, please be extra cautious,” said Shoots.SDG&E warned 700 customers in the backcountry of the possibility of Public Safety Power Shutoffs (PSPS) but sent the all-clear to most customers by Monday afternoon.However, 19 customers in Descanso may still be impacted by PSPS overnight into Tuesday. 1651