| http://www.w3.org/ns/prov#value | - Pertussis caused thousands of deaths in the 1930s and 1940s, but with the advent of a vaccine, the rate of death has declined dramatically.Pneumatic otoscope - an instrument that blows a puff of air into the ear to test eardrum movement.Poliomyelitis - a highly contagious infectious disease caused by various types of poliovirus.
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