Word: booster dose
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Dates: during 1959-1959
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...Oklahoma City. Clusters of cases occurred in New Haven, Conn., Yonkers, N.Y., Charleston, W. Va. and Nashville, Tenn. True to the early-season pattern, outbreaks were mainly in slum areas. Though many victims had had one or two shots of vaccine, few had had the three-dose course, fewer still the fourth (booster) shot now recommended...