Harvard Chan’s David Williams, whose research looks at how discrimination affects Black people’s health, talks about his pioneering work to assess the toll that police killings are having on Black mental health.

So far, the only COVID-19 vaccines authorized for use need to be kept frozen. But there are many places in the world that can't support a cold supply chain.

A new over-the-counter COVID-19 test has been authorized by the FDA. Though it can be used to test people with and without symptoms, moderate cost and limited production mean it isn't a game-changer.

Health systems around the US are on the cusp of receiving COVID-19 vaccines. At the end of this months-long effort are the nitty-gritty details of how health care providers are giving people the vaccine.

Looking at the public health effects, and perhaps mortality rate, from President Trump’s running dismissal of wearing face masks to minimize the spread of coronavirus.

Health statisticians keep careful tabs on how many people die every week. Based on what's happened in past years, they know what to expect – but 2020 death counts are surging beyond predictions.

The CDC has long been a trusted source of health information, keeping the public not only safe but calm in times of disease outbreaks. Public health officials fear now for its reputation.

Health statisticians keep careful tabs on how many people die every week. Based on what's happened in past years, they know what to expect – but 2020 death counts are surging beyond predictions.