FDA pulls Evusheld because it’s not effective against subvariants

Evusheld (tixagevimab and cilgavimab) injection, a new COVID-19 treatment that people can take before becoming symptomatic. (Chris Sweda/Chicago Tribune/Tribune News Service via Getty Images) Chris Sw...

BQ, XBB omicron subvariants pose serious threat to boosters

Evusheld injection, a new COVID treatment that people can take before becoming symptomatic, in Chicago on Friday, Feb. 4, 2022. Chris Sweda | Tribune News Service | Getty Images The omicron subvariant...

Pfizer says omicron booster is better against new subvariants like BQ.1.1

A staff member draws up a syringe with the Comirnaty vaccine from Biontech and Pfizer adapted to the Omicron-BA.1 variant at the Mainz vaccination center. Sebastian Christoph Gollnow | dpa | Picture A...

Omicron subvariants resistant to key antibody treatments are increasing

Two omicron subvariants that are resistant to key antibody treatments are on the rise in the U.S., according to data from the Centers for Disease Control and Prevention. The subvariants BQ.1 and BQ.1....

Omicron subvariants show resistance, putting some people at risk

Emerging omicron subvariants are resistant to key antibody treatments for HIV patients, kidney transplant recipients and other immunocompromised people, making them particularly vulnerable to Covid th...

U.S. is tracking omicron subvariants but booster should protect

The U.S. is tracking several coronavirus omicron subvariants that more easily evade immunity, but the new booster shots should protect against them, a top health official said on Tuesday. Health offic...

Vaccine Targeting Fast-Spreading Omicron Subvariants Could Be Ready For Fall As Pfizer, BioNTech Announce Trials

Topline Pfizer and BioNTech will begin trials of their updated mRNA Covid-19 vaccine designed to protect against the newer BA.4 and BA.5 sub-variants of the coronavirus latest this month, BioNTech ann...

WHO says omicron BA.4 and BA.5 subvariants have spread to over a dozen countries

coronavirus impact business and economy Mf3d | E+ | Getty Images Omicron subvariants BA.4 and BA.5 have been detected in more than a dozen countries, helping fuel sporadic Covid outbreaks across the w...

NY Gov. Hochul warns omicron subvariants driving spike in infections

Kathy Hochul, governor of New York, speaks during a news conference in New York, on Tuesday, Sept. 21, 2021. Mark Kauzlarich | Bloomberg | Getty Images Two mutated strains of the highly transmissible ...

WHO tracks omicron BA.4 and BA.5 subvariants as they spread through Africa and Europe

Omicron subvariants BA.4 and BA.5 are circulating at low levels in several countries within Southern Africa and Europe, according to the World Health Organization.  The two subvariants of the highly c...