[Results of identifying Klebsiella in various diseases of newborn and young infants].

457 Klebsiella strains isolated from newborns and young children with different clinical manifestations of infections, as well as from adults having contacts with them and from various objects of the environment in the foci of these infections, have been studied. All the isolated cultures, with the exception of one strain isolated from the pus of a gluteal abscess and identified as K. ozaenae K4, have been identified as K. pneumoniae. The use of experimental Klebsiella K-sera has allowed one to establish the presence of 27 K-antigen varieties in K. pneumoniae; among them K2, K9, K10, K13, K18, K20, K24, K33, K46, K47 have been found to occur most frequently . In group diseases of infants serovars K2, K9, K10, K18, K20, K24, K33 have been identified, serovars K9, K10 and K20 being detected for the first time in such cases. The data confirming the etiological role of the isolated Klebsiella organisms point out to the necessity of maintaining the constant microbiological control of Klebsiella infection in maternity homes and children's somatic hospitals.