Epidemiology

Current prevention measures may not be enough to prevent an outbreak

A new, more transmissible form of SARS-CoV-2 is rapidly spreading in the country and poses a threat to unvaccinated and partially vaccinated people

These pathogens already kill 1.6 million people every year, and we have few defenses against them

Mask wearing, social distancing and other steps to stop COVID-19 have also curtailed influenza

The risk of COVID transmission in schools is very low if precautions are taken

Undercounting or ignoring cases of the disease on the continent could lead to new variants that might derail efforts to end the pandemic

On the anniversary of this global disaster, we take a look back at some of the biggest mistakes, surprising successes and lingering questions

Lessons from other viruses show that even if vaccines don’t completely stop disease spread, they can still successfully contain it

Experts suggest limiting travel and keeping Thanksgiving and other celebrations small and outdoors

Nirav Shah directs Maine’s response, which is seeing impressive results despite risk factors

As few as 10 percent of infected people may drive a whopping 80 percent of cases in specific types of situations

Public health specialist and physician Camara Phyllis Jones talks about ways that jobs, communities and health care leave Black Americans more exposed and less protected