A potentially deadly new strain of the swine flu virus cropped up in more places in the United States and Mexico on Saturday, in what the World Health Organization called "a public health ...

The Pan American Health Organization says the most affected age groups are children under the age of 5 and adolescents aged ...

Mexico has reported at least 1,520 measles cases as of late May, according to data from the Pan American Health Organization.. Canada reached measles elimination status in 1998, meaning that there ...

The World Health Organization is the directing and coordinating authority on international health within the United Nations system. The objective of WHO is the attainment by all peoples of the ...

The World Health Organization plans to officially back the use of weight-loss drugs to treat obesity in adults for the first time, a memo reviewed by Reuters on Thursday shows.

This years’ measles outbreaks are the biggest that Canada and Mexico have seen in decades, and the World Health Organization has warned that the “overall risk of measles in the Americas Region ...