Diseases, Conditions, Syndromes

Human cases of bird flu 'an enormous concern': WHO

The World Health Organization voiced alarm Thursday at the growing spread of H5N1 bird flu to new species, including humans, who face an "extraordinarily high" mortality rate.

Diseases, Conditions, Syndromes

What parents need to know about measles

Measles is a highly contagious disease caused by the measles virus. The infection can lead to serious and sometimes fatal complications. Fortunately, measles is a vaccine-preventable illness.

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