Note on Antibodies to Poliomyelitis Viruses in the Sera of Residents of Eastern Saudi Arabia

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Abstract
Summary Fifty-seven blood sera obtained from life-long residents of Eastern Saudi Arabia were tested in tissue culture for neutralizing antibodies against poliomyelitis viruses, Types I, II, and III. Of the 57 sera tested, 55 were positive against one or more types. Antibodies to Type I were detected in 75%, against Type II, 77% and against Type III, 70%. It seems probable that all three types of poliomyelitis are endemic in the area and that exposure occurs at an early age.