(CNN) Repeatedly catching Covid-19 appears to increase the chances that a person will face new and sometimes lasting health problems after their infection, according to the first study on the health risks of reinfection.
The study, which is based on the health records of more than 5.6 million people treated in the VA Health System, found that, compared with those with just one Covid-19 infection, those with two or more documented infections had more than twice the risk of dying and three times the risk of being hospitalized within six months of their last infection. They also had higher risks for lung and heart problems, fatigue, digestive and kidney disorders, diabetes and neurologic problems.
Summer in the Bay Area means outdoor parties, weddings and music festivals, where people can worry a little bit less about catching COVID-19. But will fast-spreading offshoots of the omicron coronavirus variant change the equation this year?
The highly infectious and immune-evasive BA.4 and BA.5 sub-lineages of omicron are now the dominant strains in Northern California, according to data published by the Centers for Disease Control and Prevention. COVID infections are up across the state as the test-positivity rate nears record levels, meaning the risk is higher in nearly all settings.
Three of California’s counties have recorded over 60 cases per day per 100,000 population over the last 7 days. Solano County had the highest of any county, at 67 new cases per day. Stay tuned for tonight’s Solano Health Department details. (Due to the holidays, Solano has not updated its COVID Dashboard since June 30.)
Experts say the surge is being driven by the Omicron subvariant known as BA.5, which has rapidly become dominant in the United States and is especially good at infecting people even if they’ve been vaccinated, boosted and already had the virus.
“It’s highly immune-evasive, and that is why it’s causing trouble,” said Dr. Eric Topol, a professor of molecular medicine at Scripps Research in San Diego. “And it comes along in California at the same time that we basically have this delusion that the pandemic is over.”