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This week, experts are sending warnings to those considering seeing people outside their household without quarantining first. One aerosol expert weighs in on just how dangerous the holiday could be."My simplest advice is it is not a good idea to meet with people outside of your household for a holiday meal. That’s the most important message that can be underscored, and the reason for that is there are multiple ways this virus can be transferred,” said Alex Huffman, an aerosol expert and associate professor at the University of Denver. “The closer you are increases the chances of that, but aerosols can come out of your mouth and mix into the room. The longer you're in that room, the more chance you have of getting sick.”Huffman says time, ventilation and proximity have a big impact on whether coronavirus droplets can spread and infect others."When you breathe and talk, the louder you talk, droplets and aerosols come out of your mouth. So, traditionally, droplets are on the bigger side, aerosols are on the smaller side," said Huffman.With no mask on, these droplets can land on the faces of people around you or on their plates."And so, the biggest danger with the Thanksgiving meal or holiday meal or any meal specifically, restaurants included, are that you have to take off your mask to eat and that is why eating together indoors is so dangerous," said Huffman.Huffman demonstrated how fast droplets can spread in the air by showing how quickly food coloring can spread in water. He also analyzed the risks of eating a Thanksgiving meal in person, taking commonly-used models and applying varying factors that come into play when eating with people outside of your household."And then, I used the same model to say, ‘What happens if we meet for holiday meals?’ Let's say we have 10 people. We all eat for two hours. We all don't have masks on, and then, we ran different scenarios. If it was a small room, a large room, a medium-sized room and then estimate the amount of risk that would be from aerosol," said Huffman.Matching with community transmission rates, Huffman estimated that the probability of each person at the table having COVID-19 was about 5 percent."If it's a small room, everybody has something like a 15 percent chance of getting infected, even if we had no idea if anybody was infected or not. If it's a big room, it's a little bit less than that," explained Huffman.Ventilation also comes into play, which is why experts are advising that if you really are planning to meet with family this holiday, do it outside. Opening windows and doors also helps. Huffman also has some tools people can use, such as a carbon dioxide monitor or you can create your own box fan air filter."On the back, this is a furnace filter that’s also 20 inches and so you tape them together so they're well-sealed. You turn it on high and you blow the air through this filter and that removes the particles in the room that could potentially contain virus in it," said Huffman.Still, Huffman and other medical experts agree this won't completely eliminate the risk of spreading COVID-19. The safest thing to do is stay home and avoid celebrating Thanksgiving with people who are not part of your household. 3230

TORONTO — Canada is introducing a contact tracing smartphone app that will notify Canadians of exposure to the new coronavirus.Prime Minister Justin Trudeau says the app will be voluntary and that if someone tests positive, other users who have the app and have been in proximity will then be alerted they’ve been exposed to someone who has tested positive.Trudeau says that the government will not collect any data from the app and users won't need to enable location services in order to use it.Governments around the world have been turning to smartphone technology to help battle fresh virus flare-ups as they ease lockdown restrictions. But technical problems and privacy concerns have dogged the development of virus tracing apps. 744

Tom Steyer is spending another million to put a second anti-Donald-Trump advertisement on national television -- this time taking aim at the President's tax overhaul push.The ad comes less than a month after the Democratic mega-donor and billionaire environmentalist spent million on a one-minute ad calling for Trump's impeachment.The second installment of Steyer's anti-Trump ad campaign begins Thursday with a spot filmed on Steyer's ranch in Pescadero, California. 484

TIJUANA, Mexico (KGTV) - Hundreds of kids are waiting at shelters in Mexico, unable to get their asylum application processed, according to lawyers.They came with the migrant caravan in November. "Really quite brave of them to go through all of that," Lawyer Kara Lynum said. Lynum traveled to Tijuana with fellow lawyers from around the country in December.While in the shelter during their five day stay, she says they saw huge gaps in resources for the kids, prompting them to create a GoFundMe page."So the money is going directly to Al Otro Lado, so they're going to use it to fund those needs, they're going to hire a teacher. They're going to hire a trauma counselor for the kids, enhance security in the shelter and then hopefully hire a lawyer too," Lynum said one of the biggest issues is getting kids' applications processed."There's that list for asylum seekers, and the kids can't get on that list," saying change needs to happen, "for the children, in particular, they should be able to walk up to the Port of Entry and start the process of asylum."The roadblock, the law states anyone under 18 must have a guardian, to ensure the child is acting under their own free will."To know the background of this minor, I mean there's arguments that some of these kids are being trafficked. We don't know exactly where are there parents?" Immigration Specialist and Lawyer Lilia Velasquez said.Lynum said many of the kids she encountered have relatives in the U.S. Velasquez said the kids' parents have to sign over Power of Attorney, "the minor brings an ID with a photo, the relative brings also an ID, maybe birth certificates, then they can verify if those kids belong to that family."Back home in Minnesota Lynum thinks about the kids she met, wondering how they're faring, "I think about being 17 and a girl and you're by yourself and taking all of that on, is a big ask for these kids." 1907

Thousands of athletes, coaches and spectators who attended a national cheerleading competition last month in Dallas may have been exposed to mumps, state health officials said.Approximately 230,000 people attended the National Cheerleaders Association All-Star National Championship, said C.C. Gonzalez-Kurz, public information officer for the city. More than 25,000 of those people were athletes and coaches, according to the NCA.No illnesses linked to the championship, held February 23 to 25, have been reported so far, state health spokesman Chris Van Deusen told CNN. However, the virus' shortest possible incubation period since that time only just ended."There's only a small risk for most people who were there, but we wanted to let people know so they could watch for mumps symptoms," Van Deusen said.Mumps is a contagious viral illness with symptoms that include swollen or tender salivary glands, swollen or tender testicles, low-grade fever, tiredness and muscle aches, according to the Centers for Disease Control and Prevention. Symptoms typically appear 16 to 18 days after infection, but the period can range from 12 to 25 days.The virus is spread through "saliva and respiratory droplets created when a person sick with mumps coughs and sneezes," Antonio Aragon of the Texas Department of State Health Services wrote in a March 2 letter sent to cheerleading gyms that sent teams to the event. It also was shared on Twitter?and sent to CNN.Generally, mumps symptoms last at least two -- but not more than 10 -- days.'It would start happening around now' 1597

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