Health Security

In 2021, public health endured some enormous losses, but made some major gains and is closing out the year with so much left to do.

 A couple long years into the COVID-19 pandemic, it can be easy to think of it as a once-in-a-generation event. Instead, the pandemic should be viewed as “a warning shot” in the face of mounting biological threats  that countries still aren’t prepared to meet, according to…

Additional data, emerging variants, and new understandings of the disease update our earlier thinking about herd immunity for Covid-19.

A new report from CommuniVax provides recommendations to better serve groups with persistently low vaccine coverage.

A public health expert and Olympic silver medalist’s take on the safety of the Tokyo Olympics.