Viruses

The antiviral Tecovirimat (TPOXX) shows promise against monkeypox, but human data and supplies are limited

Cases of paralysis in the U.S. and Israel suggest vaccine-derived poliovirus has infected many people

An unvaccinated person in New York State’s Rockland County developed paralysis from a polio infection, emphasizing the need to target vaccination efforts to vulnerable communities

A greyhound in Paris was infected with monkeypox from its owner, underscoring the possibility of a viral reservoir in animals

In the U.S., Black and Latino men who have sex with men are most vulnerable to monkeypox

Frequently asked questions about how mpox spreads, who’s most at risk, and what vaccines and treatments are available

The Langya virus, which is related to the Nipah and Hendra viruses, has infected at least 35 people in China in the two years before 2021

A virologist explains how they work, who can get them and how well they prevent infection

A smallpox antiviral that’s effective against monkeypox is tied up in red tape, and gay-health advocates are pushing to make it easier to access

Earlier action by the World Health Organization and Western countries could have helped control monkeypox in Africa

An unvaccinated person became infected with the virus, which can be traced to a live, weakened virus commonly used in the oral polio vaccine abroad

The virus circulating in the current outbreak has mutated 50 times in the past four years