The CDC’s updated mask guidelines say that cloth masks offer the least protection from COVID-19. Differences in the materials masks are made from and the ways they fit are the reason.
Masks definitely catch some of the virus laden aerosols and droplets - and that will reduce transmission between people and the number of cases of COVID-19.
Supply chain issues, emergency science, social distancing requirements and a lot more free time offered both challenges and opportunities for research scientists.
A new study in the United States found school reopening in late 2020 was associated with an increase in COVID-19 cases and deaths. But this was mostly the case where masks weren’t required.
Since the coronavirus first began spreading around the globe, people have debated how effective masks are at preventing COVID-19. A year and a half in, what does the evidence show?
Subtly shifting the crafting and delivery of public health messaging on COVID-19 vaccines could go a long way toward persuading many of the unvaccinated to get the shot.
Fighting against federal authority is a political tradition in the South – and resisting federal guidance to wear masks in schools is just the latest example, an education policy expert writes.
After the CDC changed course in late July, recommending universal masking indoors, Nevada became the first state to adopt a flexible masking policy that can quickly adjust to changing COVID-19 rates.
Parents face tough choices since young kids can’t yet get COVID-19 vaccinations. An infectious diseases expert offers guidance on navigating summer activities.