world health
On World Polio Day, health experts celebrated the "endgame" of polio eradication.
The number of preventable deaths is astounding.
In Brazilian pharmacies, insect repellent has tripled or even quadrupled in price.
Half of the country's children aren't vaccinated against the disease.
WHAT'S HAPPENING
Americans' obesity is a factor.
Anyone who tests positive for the virus should start treatment immediately.
But there are still about 16,000 children under five dying each day.