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Neurotropic viral diseases surveillance. Poliomyelitis : annual poliomyelitis summary ; 1966
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Neurotropic viral diseases surveillance. Poliomyelitis : annual poliomyelitis summary ; 1966
  • Description:
    I. Summary -- II. Surveillance Data: Current Trends of Paralytic Disease -- III. The Texas Epidemic -- IV. "Vaccine-Assocoated" Cases -- V. "Vaccine Failues" -- VI. Nonparalytic Poliovirus Disease and Unidentified Isolates -- VII. Vaccination of the Population.

    This issue of the Neurotropic Viral Diseases Surveillance Report contains the final summary of the experience with poliovirus in the United States for the year 1966, as reported to the Epidemiology Program, National Communicable Disease Center. For the year, the "best available paralytic poliomyelitis count" was 102 cases. This total is the third lowest figure ever recorded. However, it is 41 more than the total paralytic cases reported in 1965, and 11 more than the total for 1964 as well. This is the first year since 1959 in which the annual total of reported cases exceeds that of the preceding year.

    Sixty-six of the 102 cases occurred during a poliomyelitis epidemic in southern Texas. This outbreak, the largest in the United States in three years, occurred predominantly in unimmunized preschool children of lower socioeconomic background. Two cases of paralytic poliomyelitis had onset of disease in other States, but were thought to have acquired their disease while in the epidemic areas of Texas or Mexico.

    Over 75 percent of the cases of paralytic poliomyelitis were in children less than five years of age. Approximately three-quarters of the patients had received no prior poliovaccine immunization. In 1966, seven deaths were attributed to poliomyelitis.

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