This week, the FDA and CDC authorized Pfizer and Moderna to start administering vaccine boosters that have been reengineered to specifically target the Omicron BA.4 and BA.5 variants that caused this ...

Please provide your email address to receive an email when new articles are posted on . Patients with innate immune system defects and those with T-cell defects generally have worse outcomes with ...

Manal Mohammed is a senior lecturer of medical microbiology at the University of Westminster. Since the COVID variant Omicron emerged in late 2021, it has rapidly evolved into multiple subvariants.

The omicron variant of the coronavirus hospitalized U.S. children at about five times the rate during the previous delta surge, according to the Centers for Disease Control and Prevention (CDC). In a ...

The Omicron-specific COVID-19 booster may be available in a few weeks, assuming federal agencies sign off on the new shot, a top White House COVID-19 official said this week. The booster has been ...

BUFFALO, N.Y. – A new University at Buffalo study conducted at John R. Oishei Children’s Hospital is one of the first to reveal that there were fewer cases of multi-system inflammatory syndrome in ...

Let’s clear up one misconception. Viruses aren’t like deodorant on your armpit or a fart in a room. They don’t necessarily automatically get weaker over time. In fact, often it’s quite the opposite.

SAN FRANCISCO (KGO) -- New research shows the latest highly-transmissible COVID subvariants may be shortening the window of immunity post-infection. "I think this is a wake-up call," said UCSF's Dr.

The Omicron XBB subvariants now comprise over 50% of the Covid-19 cases in New York State. Will Holiday gatherings such as New Year's celebrations result in yet another Covid-19 surge? (Photo by YUKI ...

The Ba.4 and Ba.5 subvariants of omicron are now estimated to make up more than half of all COVID-19 cases in the United States. Here’s what to know. Less than six months after the omicron wave hit ...

So-called "natural immunity" against COVID-19 has always been a dodgy argument for avoiding vaccination during the pandemic. But amid omicron, natural immunity is clearly rubbish. Unvaccinated people ...

The next generation of COVID-19 booster shots — tailored specifically to combat the super-infectious family of Omicron subvariants — could roll out early next month. The long-in-the-works offering ...