Epidemiology

COVID levels may have peaked but flu is still high; RSV is on the way out

Polio, a disease that can cause lifelong paralysis, has been eliminated from the U.S. Experts fear a resurgence if lifesaving vaccines are revoked under the new administration

H5N1 avian influenza continues to spread amid commercial and backyard poultry, and additional cases have been reported in domestic cats

The Trump administration may undermine U.S. leadership and the international system of global health cooperation. Pandemic preparedness, resilient health systems and reproductive rights will suffer worldwide

Louisiana has reported the first U.S. fatality from avian influenza. Most of the country’s human cases have been mild

Former president Jimmy Carter’s charity has helped transform Guinea worm from a disease that used to infect millions to one that infects fewer than a dozen

Samples from a hospitalized patient in Louisiana show changes that could make the H5N1 virus spread more easily between humans

Louisiana reported a person hospitalized with a severe case of H5N1, and the USDA has begun bulk milk testing

Authorities in the Democratic Republic of the Congo are racing to identify a deadly illness that is affecting malnourished children

Shi Zhengli, the virologist at the center of COVID lab-leak theory, reveals coronavirus sequences from the Wuhan institute

A new study finds tweaking part of the H5N1 virus infecting dairy cows in a single spot could allow it to better attach to human cell receptors, raising concerns it could transmit more easily between people

Milder cases of pneumonia, dubbed “walking pneumonia,” are on the rise in young children this year