Prevalencia del estreptococo beta hemolitico del grupo A en 1,574 preescolares de jardines de ninos. / Prevalence of beta hemolytic Streptococcus of A group in 1,574 preschool child

Se estudiaron los cultivos faringeos de 1,352 preescolares y se concluyo que la prevalencia de estreptococos beta hemolitico fue de 7.6%. No hubo cardiopatias. De todos modos un numero que no se puede precisar, de estos pacientes son, ademas de portadores, potencialmente susceptibles de enfermar del corazon. Se hace enfasis en la conveniencia de llevar a cabo este plan de encuesta y profilaxis primaria en Mexico, en forma mas amplia

[Primary prevention of rheumatic fever. Occurrence of beta hemolytic Streptococcus of the A group in 11,314 students in Magdalena Contreras]. / Estudios sobre la prevención primaria de fiebre reumática. I. Prevalencia de estreptococo beta hemolítico del grupo A, en 11,314 escolares de la Magdalena Contreras

A study was made in 11,314 school-age children to determine the prevalence of streptococcus pyogenes group A. The children studied belonged to a low socioeconomic group of one of the political boroughs of the Federal District. The prevalence found was 6.86%. There were no differences in the percentage of carriage according to the school surveyed or the school grade studied. However, marked differences were found when the presence of arthralgias was related to the carriage of streptococcus. Children complaining of artharlgias showed twice as much streptococcus in their pharynx than the ones not carrying it.