With summer travel in full swing, and masks a distant memory, it’s not entirely surprising that COVID-19 cases are creeping upward again. Along with the increase, some states in the U.S. are also ...

A combination COVID-19 booster dose that targets the ancestral strain of SARS-CoV-2 and the initial omicron variant, BA.1, appears to outperform the current booster against both of those versions of ...

We’ve seen second COVID-19 boosters recommended for older adults and people with underlying health conditions — but what about the general population? Well, it’s looking like a new booster shot will ...

Vaccines against other infectious diseases are given in multiple doses. Many of our childhood vaccines require multiple doses—5 doses for (diphtheria/tetanus ...

As Covid cases and hospitalizations rise nationwide, the message from federal health officials about boosters is clear: Don’t wait to get the shot. If you're eligible, get it immediately. "The threat ...

As the covid-19 pandemic has changed with the emergence of new variants, Moderna is looking to update its vaccine offerings in response. The drug manufacturer is studying an updated booster vaccine ...

Pfizer said Saturday that using new versions of its Covid-19 vaccine as boosters led to a superior antibody response against the Omicron variant compared to its current shot. The results in some ways ...

The COVID vaccine is getting an upgrade. Should your vax status get one as well? For two years, we’ve been protecting ourselves with a shot modeled on the original version of the virus. But soon after ...

We regularly answer frequently asked questions about the coronavirus. If you have a question you'd like us to consider for a future post, email us at [email protected] with the subject line: ...

While Omicron variants of the pandemic coronavirus ratchet up immune evasion, a new study suggests current boosters intensify protections against serious infection. Although Omicron subvariants of the ...