MEDICAL

New Omicron subvariant swamping the U.S. escapes immunity from vaccination and previous infections, new studies say
Scientists have found that the newly dominant Omicron subvariants, BA.4 and BA.5, are evading vaccine and infection-acquired immunity. The subvariants recently caused a fresh wave of infections in South Africa and are pushing the U.K. to the brink of another wave of...

Catching Omicron variant ‘does NOT provide immunity from reinfection’, scientists reveal – saying it helps explain the continued rise in cases
Covid sufferers who caught the Omicron variant will not be protected from catching it again, according to scientists at Imperial College London. The investigators say Omicron and its evolutions could explain why Covid cases remain higher than predicted in the UK....

Omicron Hit Rural America Harder Than Cities
The omicron wave of the COVID-19 pandemic in late 2021 and early 2022 spread like a grass fire in America’s densely populated cities but led to higher rates of death in rural counties where vaccinations are lagging. The latest study by the University of...

Artificial intelligence may be the only way researchers can solve the perplexing puzzle of Long COVID. It ’s already categorizing patients and even identifying them
Long COVID may be too big a problem for humans to solve—alone, at least. Increasingly, researchers are turning to artificial intelligence to help them sort through the electronic medical records of millions of long-COVID patients in hopes of better understanding the...