ABSTRACT
BACKGROUND:
Klebsiella pneumoniae on these days show greater resistance towards newer generation cephalosporin. The
present study made an effort to show the relevance between ESBL producing K. pneumoniae and virulence determinant in respect to serum resistance and K1, K2 antigens at a
tertiary care hospital in South India.
MATERIAL AND METHODS: A total of 520 consecutive, non-duplicate isolates of K. pneumoniae were recovered from various clinical specimens such as Urine (n = 360), sputum (n
= 107), pus (n = 25), blood (n = 6) and other miscellaneous specimens (n=22) obtained
from both out patients and in patients between June 2012 to July 2016 were included
in the study.
RESULTS: Polymerase Chain Reaction to detect bla genes in 62 isolates phenotypically identified
as ESBL producers were successful in 58 (93.54%) isolates. Of the 13 ESBL producing
hypermucoviscous Klebsiella pneumoniae (hvKP) strains, 6 of them were showing the amplicons for gene's coding for K1 antigens.
CONCLUSION: The study provides further authentication of the global sporadic of bla CTX-M and
the relevance between K antigens and serum resistance with ESBL production in our
place. As there is no much study available, it also highlights the need for further
study of their epidemiological surveillance.
Key words
BlaCTX-M - bla
SHV
- blaTEM - extended spectrum beta-lactamase -
Klebsiella pneumoniae