As ready as you are to be done with COVID-19, it's not going anywhere soon. A historian of disease describes how once a pathogen emerges, it's usually here to stay.
New research shows China's claim to have eradicated this parasitic disease in the 1950s were false, and part of a big cover up.
The smallpox virus appears to have been with humanity for millennia before a global vaccination drive wiped it out. Current genome research suggests how smallpox spread and where it came from.
Measles cases in the US have reached their highest in 25 years. A bioethicist argues why parents opposed to vaccination are not just wrong about the science, but about the morals.
Vaccinating against an infectious disease can stop once the threat of future transmission is deemed sufficiently low.
Polio for years has been close to becoming eradicated, with the entire continent of Africa going two years without a reported case – until early August. Here's why eradication is hard but attainable.