[Susceptibility to antimicrobial agents of 2,060 strains of different bacteria isolated in infectious processes in children]. / Susceptibilidad a los antimicrobianos de 2,060 cepas de diferentes bacterias aisladas en procesos infecciosos de niños.

Susceptibility to antibiotics of 2060 strains of the following bacteria was studied: Escherichia coli, Klebsiella pneumoniae, Salmonella, Shigella, Proteus, Staphylococcus aureus that were isolated in 1978-79 from different infections in children hospitalized at the Hospital Infantil de Mexico. The antimicrobials submitted to the test of susceptibility were: ampicillin, amikacin, carbenicillin, cephalothin, cefoxitin, chloramphenicol, gentamicin, kanamycin, neomycin and sulfamethoxazole-trimethoprim. Present results are compared with previous studies.

Susceptibilidad a los antimicrobianos de 2,060 cepas de diferentes bacterias aisladas en procesos infecciosos de ninos. / Susceptibility to antimicrobials of 2060 different strains bacteria isolated from infections in children

Se estudio la susceptibilidad a los antibioticos de 2,060 cepas de las siguientes bacterias: Escherichia coli, Klebsiella pneumoniae, Salmonella, Shigella, Pseudomonas, Proteus y Staphylococcus aureus, aisladas durante 1978-1979 en diversas infecciones de ninos internados en el Hospital Infantil de Mexico.Los antimicrobianos sometidos a prueba de susceptibilidad fueron: ampicilina, amikacina carbenicilina, cefalotina, cefoxitina, cloranfenicol, gentamicina, kanamicina, neomicina, sulfametoxazol trimetoprin y tetraciclinas. Los resultados actuales se comparan con los obtenidos en estudios anteriores

[Hospital infection due to Serratia marcescens and its sensitivity to antibiotics]. / Infección intrahospitalaria por Serratia marcescens y su sensibilidad a los antibióticos.

A total of 164 isolations of Serratia marcescens achieved during 1978-1979 at the Hospital Infantil de México in children with various pathology due to this bacteria were studied. Most of the cases were debilitated patients from the newborns and prematures wards and contagious and surgery departments. The most frequent isolations were from wounds and abscesses (76 cases), the same as from meningitis (22 cases) and sepsis (12 patients). Serratia marcescens showed a high degree of resistance (87-100%) to the following antibiotics: carbenicillin, colimycin, chloramphenicol, phosphomicin, ampicillin and cephalothin. To gestamicin and kanamycin, 42% of strains were sensitive. Amikacin was the most effective drug with 92% of strains susceptible to it. The history of this bacteria, its mode of transmission, frequency of infections and resistance to antibiotics found in foreign institutions are commented. Likewise, the difficulty for the precision bacteriologic diagnosis is emphasized as the possible main cause for the ignorance in Mexico of infections due to this bacteria.