The first known meta-analysis of how SARS-CoV-2 variant type and time since infection influence long-COVID symptoms ties Omicron to brain fog and paresthesia (numbness and tingling), while earlier ...

The COVID-19 pandemic brought messenger RNA (mRNA) vaccines to the forefront of global health care. After their clinical ...

This story was updated at 5:08 p.m. New Mexico will maintain its mask mandate for indoor public spaces through March 4, under a public health order updated earlier this month. After several states ...

Researchers have devised a new tool for discerning between naturally occurring viral outbreaks and those resulting from lab ...

A futuristic “DNA origami” vaccine platform may one day outperform mRNA shots while being easier to produce and distribute. Credit: Shutterstock Scientists have developed a new DNA origami–based ...

Six years after India reported its first Covid-19 death in Karnataka, revisit key facts about the pandemic and test your knowledge with this quick quiz.