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Probiotics Need To Eat, Too

Could prebiotics, the food for the good bacteria known as probiotics, have more benefits than a dose of the microbes, particularly for people with serious health problems like preemies? A researcher working with pigs is trying to figure that out.

When Infections "Spillover"

In his new book Spillover writer David Quammen traces the evolution of Ebola, HIV and other diseases that moved from animals to humans. Quammen describes how scientists look for the reservoirs of the infectious agents, and what might be done to prevent the next pandemic.

Tweet Chat: Chasing Down Polio, Eradication In Sight

Thanks to vigorous efforts to eradicate the poliovirus through vaccination, there are only three countries on the face of the earth where polio is still endemic. NPR reporters and editors hosted a chat on Twitter: #chasingpolio.

Freezing Eggs To Make Babies Later Moves Toward Mainstream

The American Society for Reproductive Medicine has concluded that freezing women's eggs to treat infertility should no longer be considered "experimental." The practice has long been controversial. Some critics worry the policy shift will encourage more women to turn to egg freezing to stop the biological clock.

More Clues About Hazards From Laundry Detergent Pods

Kids exposed to laundry detergent pods appeared more likely to have vomiting, drowsiness or lethargy than those who were exposed to other forms of laundry detergent. An analysis of reports of poisoning by detergent pods finds they represent "an emerging public health hazard."