| http://www.w3.org/ns/prov#value | - Even then, infants are still at risk because they need several more boosters, said Dr. C. Mary Healy, an expert on pediatric infectious diseases at Texas Children's Hospital in Houston.Studies show it is family members, particularly mothers, who infect infants with whooping cough, which was a significant killer of infants in the United States until widespread inoculations began in the 1940s.Though
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