WYSTĘPOWANIE PAŁECZEK ESCHERICHIA COLI Z ANTYGENEM POWIERZCHNIOWYM K1 U KOBIET CIĘŻARNYCH I NOWORODKÓW
[THE OCCURRENCE OF ESCHERICHIA COLI WITH K1 SURFACE ANTIGEN IN PREGNANT WOMEN AND IN NEWBORNS]

Streszczenie

Oceniono częstość występowania polisacharydowego antygenu K1 wśród 425 szczepów E. coli izolowanych z wymazu z odbytu i 67 szczepów izolowanych z pochwy kobiet ciężarnych oraz wśród 40 szczepów E. coli wyosobnionych z przedsionka jamy nosowej noworodków w okresie czerwiec-wrzesień 2008 roku. Występowanie antygenu K1 oznaczono testem aglutynacji lateksowej Pastorex Meningitis (Bio-Rad).

Abstract

The aim of the study was to determine the frequency of occurrence of K1 surface antigen in Escherichia coli strains isolated from the pregnant women and newborns. A total of 425 of E. coli strains isolated from the faecal samples, 67 strains isolated from the vagina of pregnant women and 40 strains isolated from the newborns’ nasal cavity were included into the study. All strains were
collected between June and September of 2008. Identification of isolates was followed by the assessment
of presence of K1 surface antigen in E. coli strains. The presence of K1 antigen was found in 17,6% of E. coli strains isolated from the faecal samples, 20,9% of E. coli strains isolated from the vagina of pregnant women and in 17,5% of E. coli strains isolated from the newborns’ nasal cavity. Routine screening of E. coli K1 colonization gives an opportunity to identify women with the risk of
E. coli K1 transmission to neonates during delivery and thereby with major probability of perinatal infections. Latex agglutination test Pastorex Meningitis (Bio-Rad) provides fast identification of E. coli K1 strains.