The Latest Breaking News from William Schaffner

As the holiday approaches, infectious disease specialists are bracing for the possibility that big family get-togethers and travel will propel the spread of RSV, flu and COVID-19.

A new study suggests vaccinating pregnant women protects their newborns from the common but scary respiratory virus called RSV

NEW YORK — The polio virus has been detected in New York City, health authorities said Friday, a jarring discovery arriving three weeks after the long-defeated virus reemerged in Rockland County north of the city. The potentially deadly virus was detected in sewage samples collected in the city.

The detection of poliovirus in wastewater samples in London and New York is providing another stark reminder of the importance of vaccination and new forms of surveillance, public health experts say.

Early in the pandemic, doctors defined mild, moderate, and severe Covid. Two and a half years later, do they still make sense?

The president has advertised how he's hard at work while recovering from COVID; docs say that sets a bad precedent

Clinicians are ‘skittish’ about the Covid antiviral, resulting in a failure to treat patients who could greatly benefit

Other countries' health bureaus have advised the public to throat-swab when taking at-home tests, but not the US

A conspiracy theory about booster shots resurfaced this month — here’s what experts say