Delta variant passes via vaccinated and unvaccinated, driving infection and hospitalization rates in low-vaccine communities.
Canada now has vaccinated a higher percentage of its population than the USA, as "hesitancy" turns to hard opposition in many counties across the count…
Italian researchers find evidence of COVID-19 months before pandemic; Seoul cracks down on high-exertion exercise, and experts call on mandatory COVID-…
Over a year of disinformation creates climate where even clear messages get cloudy. The president turns to trusted pediatricians and others to boost va…
Experts say don't ditch the masks yet, even though vaccines are still almost 100% effective at preventing deaths and serious disease.
White House says it will miss 70% vaccination target by a "few weeks" while experts warn that unvaccinated communities may have localized surges. Meanw…
Novavax says its COVID-19 shots overall are 90% effective - and don't need freezers; Judge tosses nurses' lawsuit against vaccinations, and CDC's trans…
Death rate inches upward after weeks of steady decline; no more masks at outdoor transit hubs for fully vaccinated travelers; more evidence that vaccin…
New hospitalizations increase in Southeast USA; molecular evidence of COVID-19 spreading in NYC a month sooner than thought; J&J shots' shelf life exte…
Fauci stresses importance of two-dose vaccine regimen as variants surge; studies progressing towards COVID-19 shots for kids later in the year
WHO changes variant naming system; making vaccine access easier overcomes low vaccine numbers in some places, most US counties lag on vaccination rates
Biden launches push to reach 70% vaccination goal by July 4 as more nations record fewer deaths as vaccines roll out. But the vaccines are not reaching…