[serologic survey for the determination of antibodies against various virus infections, mycoplasma, beta hemolytic a streptococcus and toxoplasma gondii, performed on children of a state-of-mexico municipality]. | a seroepidemiologic inquest was carried out in 667 children from the county of huixquilucan, mexico, looking for serum antibodies against infections caused by the following microorganisms: epstein-barr virus; cytomegalovirus; syncytial respiratory; para-influenza 1, 2 and 3; measles; rubella; mumps; mycoplasma pneumoniae, beta hemolytic a streptococcus and toxoplasma gondii. the findings are reported. considerations are made on the incidence of these diseases in different age groups and a compar ... | 1977 | 911440 |