COVID-19

The company says a low-dose version of its vaccine triggers an immune response in children ages 6 months to less than 6 years equivalent to what has protected older children and adults.

Vaccinations and residual immunity are among the reasons, President Biden's chief medical adviser, Anthony Fauci, said Tuesday, as the number of deaths drop and hospitalizations rise only slightly.

So many people caught the omicron variant over the winter that almost 60% of everyone in the U.S. — including most children — now have antibodies to the virus in their blood, the CDC said Tuesday.

The decision comes after more than 20 states sued to block the end of the pandemic-era policy that rapidly expels migrants back to their home countries. Texas filed a separate lawsuit last week that is still pending.

Sure, you don't have to wear a mask on airplanes, buses and ride shares anymore, but you still might want to depending on the circumstances. Here's what experts say about the risks.

This decision to appeal comes just two days after U.S. District Judge Kathryn Kimball Mizelle ruled against the federal mask mandate.

A day after a federal judge ruled face coverings can’t be required on airplanes and other public transportation, some Texans cheered the decision. But others said they’re still on the fence as COVID lingers.

A federal judge ruled Monday that the federal mask mandate was unlawful. Now, travelers can ditch their masks if they choose.

The company says this version targets both the original coronavirus and the beta variant, and appears to provide broader and longer-lasting protection against different strains, including omicron.

Delta, United, Southwest, American and Alaska Airlines and others say masks are now optional for travelers on their aircraft.