OBJECTIVESTo evaluate the effectiveness of the mRNA-1273 vaccine against SARS-CoV-2 variants and assess its effectiveness against the delta variant by time since vaccination. DESIGNTest negative ...

The virus that causes COVID-19 has been very good at mutating to keep infecting people—so good that most antibody treatments developed during the pandemic are no longer effective. Now a team led by ...

The world map shows the countries and regions for which master data analyses for SARS-CoV-2 are available. The darker the red, the more data is available. The data comes from GISAID and the WHO. Since ...

A team has found two antibodies that can work together to neutralize the virus that causes COVID-19 in all its current known variations in a laboratory environment. More research is needed, but the ...

Scientists believe bats first transmitted SARS-CoV-2 to humans in December 2019, and while the virus has since evolved into several variants such as delta and omicron, a new study indicates the virus ...

New in vitro neutralization data show continued, consistent neutralizing activity of PEMGARDA ® (pemivibart) against XFG Centers for Disease Control data and wastewater surveillance data indicate XFG ...

As cases surge worldwide, more variants are likely to emerge. The World Health Organization warned Thursday that the surging COVID-19 pandemic in many parts of the world increases the likelihood that ...

The Nimbus variant, or NB.1.8.1, is a strain of SARS-CoV-2, which causes COVID-19. Alongside the usual symptoms of COVID-19, it can cause a razor blade sensation in the throat and gastrointestinal ...

Covid has largely dropped out of the headlines, but the virus that causes it is still circulating. We ask what we should know about a new variant of SARS-CoV-2, the state of the Covid pandemic in 2025 ...

A Stanford-led team has found two antibodies that can work together to defeat all SARS-CoV-2 variants. More research is needed, but the approach could help in the development of treatments to keep ...