Sierra Leone

SUNDAY, April 10, 2016 -- The cost of health care that could save the lives of millions of children and their mothers every year would be less than $5 per person, researchers report. 

The money would expand basic health services -- such as birth control, nutritional supplements and medication to treat serious illnesses such as pneumonia and malaria -- in 74 low- and middle-income countries. Those countries account for more than 95 percent of mother and child deaths each year, according to the study published April 9 in The Lancet.

The researchers reported that, worldwide, in 2015 nearly 6 million children under age 5 died, as did more than 300,000 women from pregnancy-related causes.

Scientists in Brazil have uncovered a new brain disorder associated with Zika infections in adults: an autoimmune syndrome called acute disseminated encephalomyelitis, or ADEM, that attacks the brain and spinal cord.

Where did Zika virus come from?

Zika was first noticed in Africa, in Uganda's Ziika forest (yes it's spelled with two i's) in 1947. It spread slowly at first, and seemed to be a pretty harmless virus, causing hardly any symptoms at all in most people. But it picked up speed in around 2007 when it started spreading in the South Pacific and it showed up inBrazil in 2013, according to the latest research. Because hardly anyone in the Americas has immunity to Zika, it's spread explosively since then.