Experts know from the 2014 epidemic that when the deadly virus crosses borders it sticks around for awhile.
The World Health Organization said infertility should not be regarded as simply a medical condition.
New figures show 80% of urban populations exposed to 'very high' pollution levels
Diabetes has exploded in developing countries as poor workers go from hard labor to "sedentary lifestyles."
The WHO says it is taking immediate action to expedite research on the causal relationship between the outbreak of the virus and the growing rate of infant birth defects in Brazil.
Nearly half of Hollywood movies in 2014 contained scenes in which people smoked.
Outbreak in South Korea is described as "large and complex."
The worst-hit country still saw hundreds of new Ebola cases last week.
According to the WHO's latest statistics, more than 5,000 people have succumbed to the virus, with almost 15,000 cases reported
Was the tragedy caused by a mix-up or a deliberate sabotage of the measles vaccines?
Restricting access to common methods of suicide could reduce the number of deaths, WHO says