After weeks of alarming case rates that triggered an unwelcome backtrack in L.A. County’s return to normalcy, Public Health Director Barbara Ferrer has positive news to share: the ongoing Covid-19 ...

Recently, Dr. Anthony Fauci said the delta variant of the novel coronavirus is the greatest threat to eliminating COVID-19 we have seen yet. The highly contagious variant, which was first found in ...

LOS ANGELES (KABC) -- While overall COVID-19 rates remain relatively low in Southern California amid continuing vaccination efforts, officials are increasingly worried about a growing threat from the ...

He said Delta appears to be “following the same pattern” as Alpha, the more infectious variant first found in the U.K. After taking over as that country’s most widespread variant, Alpha moved across ...

Some patients "don't think COVID is real," one health care worker told ABC News. Health care workers in southwest Missouri are sounding the alarm over a wave of young, unvaccinated COVID-19 patients ...

Part of the problem is low vaccination rates, experts said. The Centers for Disease Control and Prevention assigned two federal "surge team" members to Missouri this week to help fight the state's ...

NEW YORK -- As Americans brace for the possibility of another difficult winter ahead in the nation's fight against coronavirus, there is a renewed sense of urgency to get as many people inoculated and ...

Vaccine effectiveness against COVID-19 infection dropped from 91% to 66% once the delta variant accounted for the majority of circulating virus, according to a study published Tuesday by the U.S.

OAKLAND, Calif. (KGO) -- Hopes for a return to normalcy have been slowed by the COVID-19 Delta variant. The situation is causing some uncertainty for concert-goers. "All right, the first song is ...