2? Dr. Leana Wen: Since the start of Covid-19, we have been discussing new variants. The original strain of the virus was ...
With the rise of omicron came the fall of long-lasting protection from reinfection with the pandemic coronavirus SARS-CoV-2, ...
When COVID-19 vaccines rolled out, public health officials largely followed a simple logic: protect the most vulnerable first ...
As South Korea battled a spike in flu cases, misinformation swirled online that the country was suffering a resurgence of the Omicron XBB coronavirus variant, which was "five times stronger" and "more ...
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Dying From COVID-19: Are You Still At Risk?The landscape of COVID-19 mortality has evolved dramatically since the start of the pandemic. In 2023, the United States saw ...
Infection with the SARS-CoV-2 Omicron variant confers weak, short-term protection against reinfection, compared with the much more robust and durable protection provided by earlier variants, which ...
A new coronavirus descendant that is related to the Delta variant—also known as Delta plus or formally AY.4.2—may spread more easily than the regular Delta strain, according to experts in ...
The COVID-19 pandemic, caused by the coronavirus ... So far there have been several variants of the virus -- B.1.1.7, B.1.351, P.1, Delta, B.1.617.2, BA.5. Omicron BF.7 strain is driving the ...
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