Because an immunocompromised host doesn’t produce a lot of antibodies, many viruses are left to propagate. And new mutant viruses…
“We know that increased vaccination and infection are strengthening our defenses against Covid,” Thomas Frieden, a former chief of the…
Covid-related absences are creating headaches for businesses that were struggling to hire workers even before Omicron. Restaurants and retail stores…
Cada vez que surge una nueva variante del coronavirus, el mundo sigue un patrón similar. Los científicos divulgan sus hallazgos…
WASHINGTON — Dr. Rochelle Walensky was stunned. Working from her home outside Boston on a Friday night in late July,…
CHICAGO — New coronavirus cases have started to fall nationally, signaling that the Omicron-fueled spike that has infected tens of…
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