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If fluid behind the eardrum becomes infected with a virus or bacteria, it causes a middle ear infection that can lead to pain and fever

Over time, repeated exposure to certain insecticides can lead to the development of resistance in cockroach populations, making it harder to control infestations

A new study looked more closely at cases to see what factors in a pregnant persons life were most associated with congenital syphilis

To undermine their credibility, defense lawyers and investigators fan out around the country to track down and interview family members, school chums, Army buddiesanyone who might have known the plaintiff in the 1950s

In the late 1930s he began to associate with communists, unaware that they were under surveillance, and Oppenheimer himself popped up on the FBI's radar