What to know about infectious diseases during this holiday season
LA TimesIt’s that time of year, when families and friends come together to share their holiday cheer and a few circulating pathogens. Peter Chin-Hong, an infectious disease specialist at UC San Francisco, said people should be on the lookout for the “Big Four”: three respiratory viruses currently moving through the U.S. — influenza, COVID-19 and RSV — and one stomach virus — norovirus. Chin-Hong suspects the CDC’s outlook is based on the assumption that people have some “carryover immunity” from last year, and he said vaccinations help. “It’s never too late” to get vaccinated, he said, noting that flu season in the U.S. is just beginning. “The other hypothesis is that we just had enough cycles of it in the population, so maybe it kind of is low this year.” But, he said, COVID has proven itself a nimble and adaptable virus, continually spawning recombinant variants, so “coupled with low vaccination rates, that’s always the fear with COVID, that it’ll surge back.” The best things one can do to avoid the three respiratory viruses — influenza, COVID and RSV — is to follow “The three V’s: Vaccinate, ventilate and wash your hands very often,” he said.