Relationship of Toxoplasma Antibodies to Altitude

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  • U. S. Army Medical Research Unit Component, Middle America Research Unit, Box 2011, Balboa Heights, Canal Zone
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A total of 504 sera from school children from three ethnologically and socio-economically similar communities at differing altitudes in Panama were tested for antibodies to Toxoplasma gondii with the indirect fluorescent antibody test. Statistically significant differences in prevalence were noted, with the lowest prevalence at the highest altitude and highest prevalence near sea level.