Vaccines

The risk of severe disease dropped by factor of almost 20 in people over 60—but some dispute the benefits of offering an additional dose

Fewer than 0.5 percent of vaccine doses have been distributed to people living in low-income countries

Cases peaked, then fell, then rose again. “It is so much worse this time”

The plan includes vaccine mandates for federal workers and those at companies with 100 or more employees, but some experts say it doesn’t go far enough

Biochemist Katalin Karikó and her colleague Drew Weissman were recently awarded a $3-million Breakthrough Prize for their work

Standard remedies offer little relief for the itchy rash caused by the plant, but researchers have found promising clues in the immune system

Pandemic ceasefires offer an opportunity to expand vaccination efforts, experts say. But negotiation is tricky

Their immune system is more primed to fight off the novel coronavirus

The novel coronavirus, in contrast, can disrupt both things in unvaccinated men and women

Experts weigh in on common questions about whether and when additional doses of coronavirus vaccines may be needed

The #ScienceUpFirst initiative was created to provide, support and amplify accurate scientific information to help people make informed health decisions

Stripping back nearly all public health restrictions comes as the virus still poses a threat