Publications

prevalence of extended spectrum beta lactamase producing gram negative bacteria in a tertiary care hospital.	extended spectrum beta lactamase (esbl) producing gram negative bacteria are increasingly being associated with hospital infections thereby rendering all beta lactams, except carbapenems ineffective in the treatment of infections related to these organisms. a knowledge about their prevalence is essential to guide the appropriate antibiotic treatment of severe infections in hospitalized patients. the present work was carried out to study the prevalence of esbl producing gram negative bacteria in ...	2002	12239838
genetic variability among group a and b respiratory syncytial virus isolates from a large referral hospital in new delhi, india.	respiratory syncytial virus (rsv) is an important childhood pathogen of acute lower respiratory infections in developed and developing countries. the molecular epidemiology of rsv in india is largely unknown. the present study was undertaken to standardize and evaluate reverse transcription-pcr (rt-pcr) for the rapid and simultaneous detection of rsv groups a and b in clinical samples and to study intragroup genetic variability. rt-pcr was evaluated by comparing the results of seminested rt-pcr ...	2003	12791842
antimicrobial resistance in enterococcus faecalis at a tertiary care centre of northern india.	multiresistant enterococci are emerging as a leading nosocomial pathogen. knowledge of the profile of antimicrobial resistance is essential to formulate treatment guidelines for infections caused by enterococci. this study reports the antimicrobial sensitivity of enterococci isolated during a one year period from clinical samples of patients admitted to a teriary care hospital of delhi.	2003	14748462
a simple method to differentiate between mycobacterium tuberculosis and non-tuberculous mycobacteria directly on clinical specimens.	we report the applicability of testing susceptibility to paranitrobenzoic acid (pnb) directly on clinical samples as a rapid screening assay, to detect m. tuberculosis and differentiate it from non-tuberculous mycobacteria (ntm). one hundred smear positive sputum samples from patients with pulmonary tuberculosis attending the department of respiratory medicine at vp chest institute, delhi, were cultured on löwenstein jensen medium with and without 0.5 mg/ml paranitrobenzoic acid. serial concentr ...	2007	17539255
prevalence of mycobacteremia in indian hiv-infected patients detected by the mb/bact automated culture system.	the use of automated blood cultures system, such as mb/bact, has provided a novel opportunity for laboratories to diagnose mycobacteremia in hiv-infected patients. however, no such study has been carried out in india so far. this prospective study was conducted on 52 hiv-positive patients with suspected tuberculosis who were referred to our tertiary care hospital in new delhi. in these patients, the prevalence of mycobacteremia was evaluated using the mb/bact automated culture system (biomérieux ...	2008	18189149
genotype profiles of mycobacterium avium subspecies paratuberculosis isolates recovered from animals, commercial milk, and human beings in north india.	to understand the genetic diversity of mycobacterium avium subspecies paratuberculosis (map) isolates recovered from domestic and wild ruminants, commercial milk, and human beings in north india.	2009	19233699