Delta

Even after the majority of Americans have been vaccinated against the virus.

As debate around the coronavirus "lab leak hypothesis" continues, fueling speculation as to the extent human intention or error contributed to the COVID-19 pandemic, questions are raised about whether Pfizer's laboratories in Mumbai and Johannesburg are implicated in the emergence of new COVID variants like Eris.

An airport worker died after being "ingested" into a Delta Air Lines jet engine at San Antonio International Airport over the weekend.

Research shows that "the duration of protection after breakthrough infection was longer than after the third/booster vaccination."

However, a recent U.K. community-based population study found that those who have previously been infected with SARS-CoV-2, which causes COVID-19, demonstrate a lower rate of new Omicron BA.4/BA.5 infections compared to those who were vaccinated.

Tenure was marked by significant challenges as the CDC endeavored to control the COVID-19 pandemic.

The decision allows fossil fuel damage claims to be pursued at the state level.

Switzerland has stopped recommending COVID-19 vaccination for spring/summer 2023 due to high vaccination rates and natural immunity from prior infection.

A meteorologist prayed live on air Friday as tornadoes ripped through Mississippi, leaving at least 23 dead.

The meta-analysis claims, "The level of protection against re-infection, symptomatic disease, and severe disease appears to be at least as durable, if not more so, than that provided by two-dose vaccination with the mRNA vaccines."