Diseases, Conditions, Syndromes

How many people get 'long COVID?' More than half, researchers find

More than half of the 236 million people who have been diagnosed with COVID-19 worldwide since December 2019 will experience post-COVID symptoms—more commonly known as "long COVID"—up to six months after recovering, according ...

Diseases, Conditions, Syndromes

Who should get the COVID-19 vaccine first?

When effective COVID-19 vaccines are developed, their supply will inevitably be scarce. The World Health Organization (WHO), global leaders, and vaccine producers are already facing the question of how to appropriately allocate ...

Health

E-cigs may damage the heart, study says

Vaping devices and the chemicals they deliver—increasingly popular among teens—may damage the cardiovascular system, a study said Thursday, adding to a growing chorus of concern over injury and deaths related to e-cigarettes.

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