[email protected] The global battle against flu Written by Staff Writer Listen to CNN Stations Around the World with Scott Helman, host of CNN International's Science Check A single flu season doesn't define a whole lifetime. But
[email protected] Coronavirus key to survival, study finds Written by Staff Writer CNN U.S. Health Editor Elizabeth Cohen. The coronavirus is most effective against old or people with immuno defficiencies, particularly those over 60, researchers say. In