Health

DNA damage levels similar in vapers and smokers, study finds

E-cigarettes—used regularly by more than 10% of U.S. teens and more than 3% of adults—were once pitched as a healthy alternative to tobacco cigarettes. But research increasingly links the use of e-cigarettes, or vaping, ...

Diseases, Conditions, Syndromes

WHO warns of virulent COVID variant risk

The World Health Organization on Wednesday laid out three possible paths that the COVID-19 pandemic might follow in 2022—with a new, more virulent variant the worst-case scenario.

Medical research

Needle-free vaccine patches coming soon, say researchers and makers

Effective vaccines, without a needle: Since the start of the COVID pandemic, researchers have doubled down on efforts to create patches that deliver life-saving drugs painlessly to the skin, a development that could revolutionize ...

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