TB Cases Falling for Foreign-Born People in U.S.

Study reports decrease among recent entrants from Mexico, China, India, Philippines and Vietnam

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Prenatal Acetaminophen Use Tied to Higher Asthma Risk in Kids: Study

But the effect was small and experts say there's no reason to switch to other painkillers

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Flu Shot May Guard Against Irregular Heart Rate: Study

Vaccination was associated with fewer cases of atrial fibrillation, but more research is needed, authors say

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Patient-to-Doctor Spread of Bird Flu Reported in China

But odds are slim that deadly virus will spread easily among people, experts say

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Allergy Shots Still Effective for Seniors

Researchers say aging immune system doesn't significantly reduce injections' usefulness

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