Salma Shabaik holds her newborn son, Ali. When he was born, she held him naked against her bare skin, a practice called kangaroo care. Ali is wearing an ear cap to correct a lop ear. Morgan Walker for NPR hide caption

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Morgan Walker for NPR

Kangaroo Care Helps Preemies And Full Term Babies, Too

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Concerns about mercury contamination have led many pregnant women to under-consume seafood. So the FDA issued a new chart explaining what to eat and what to avoid. But critics say it muddles matters. stock_colors/Getty Images hide caption

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The American Academy of Pediatrics' guidelines on when children should stay home are more liberal than those of many day care centers. Thanasis Zovoilis/Getty Images hide caption

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Luke Whitbeck, 2, sits on his mother's lap while the nurse prepares his treatment at a pediatric infusion center in Hawthorne, N.Y., in October 2016. Heidi de Marco/Kaiser Health News hide caption

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Heidi de Marco/Kaiser Health News

High Prices For Orphan Drugs Strain Families And Insurers

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NPR, Kaiser Health News/Evaluate Pharma analysis for Kaiser Health News on Sept. 21, 2016

Drugs For Rare Diseases Have Become Uncommonly Rich Monopolies

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Keishla Mojica, 23, lives in Cuagas, Puerto Rico. She was infected with Zika virus while pregnant and expects to give birth in early January. Carmen Heredia Rodriguez/KHN hide caption

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Carmen Heredia Rodriguez/KHN

The mumps virus is on the loose. Cases are popping up in Arkansas, Iowa and Illinois. Alissa Eckert/CDC hide caption

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Alissa Eckert/CDC

Mumps Bump: Cases Rise In Iowa, Illinois And Arkansas

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Researchers have found marijuana metabolites in the urine of babies who were exposed to adult marijuana use. deux/Corbis/Getty Images hide caption

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Doctors Say Parents Shouldn't Smoke Pot Around Kids

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Florida Department of Health workers package a urine test, part of the state's effort to provide free Zika tests to pregnant women. Joe Raedle/Getty Images hide caption

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The HPV vaccine has reduced the prevalence of the cancer-causing human papillomavirus by as much as 65 percent among those who are vaccinated. Matthew Busch for The Washington Post/Getty Images hide caption

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Matthew Busch for The Washington Post/Getty Images

Advice For Doctors Talking To Parents About HPV Vaccine: Make It Brief

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When Georgia Moore (second from left) was diagnosed with leukemia in 2010, her parents, Trevor and Courtney Moore, worried about the germs her younger sister, Ivy, would bring home from school. Courtesy of the Moore family/Kaiser Health News hide caption

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Courtesy of the Moore family/Kaiser Health News

He's more likely to get a timeout than a spanking. narvikk/Getty Images hide caption

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Spanking Young Children Declines Overall But Persists In Poorer Households

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Lorenzo Gritti for NPR

Poverty Wages For U.S. Child Care Workers May Be Behind High Turnover

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Teen Night Owls Struggle To Learn And Control Emotions At School

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Premature birth is the leading cause of infant death in the U.S. and also can cause lifelong disabilities. Anthony Saffery/Getty Images hide caption

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Scott Bakal for NPR

Would You Want To Know The Secrets Hidden In Your Baby's Genes?

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Auvi-Q was pulled from the market in 2015 because of quality concerns. The drug's maker says the problems have been solved and that the product will be available in 2017. AP hide caption

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AP