Streptococcus pneumoniae serotype prevalence and antibiotic resistance among young children with invasive pneumococcal disease: Experience from a tertiary care center in South India

Savitha Nagaraj, Bhuvanesh Sukhlal Kalal, Anand Manoharan, Anita Shet

Research output: Contribution to journalArticlepeer-review

Abstract

Introduction We performed a study to describe the clinical profile, antimicrobial susceptibility and prevalent serotypes of pneumococcal isolates from children with suspected invasive pneumococcal disease (IPD) admitted to a tertiary care hospital in South India. Methods Hospitalized children, ≤ 5 years with fever (>38 °C); increased respiratory rate or neurological symptoms were recruited, (as part of the Alliance for Surveillance of Invasive Pneumococci – ASIP – project) from January 2011 to March 2013. Identification of pneumococcal isolates from blood or cerebrospinal fluid samples was done by routine culture methods. Isolates were analysed for antimicrobial susceptibility, and confirmed by serotyping (using Quellung’s test) and multiplex PCR. Results Out of the 171 samples received in the lab, 17 grew pneumococci identified by standard methods. Fourteen of them were confirmed by multiplex PCR. Maximum recruitment was observed during the months of January and February (36.4%, 28.6%). The average age of affected subjects was 21 months. The common clinical presentation was pneumonia (42.8%). Two isolates belonging to the 19F and 19B serotypes were resistant to penicillin (on Etest). The observed serotype distribution was 6B and 19F (2 each), and 1, 2, 6A, 9V, 10A, 14, 15A, 19B, 21, 35F (1 each). The overall fatality rate was 14.3% (n=2); the S. pneumoniae isolates from these two patients belonged to the non-vaccine serotype 19B and serotype 19F and demonstrated in vitro resistance to penicillin and erythromycin. Conclusion Our study demonstrates the presence of serotypes not covered by available vaccines in a pediatric cohort. Emergence of drug resistant Streptococcus pneumoniae may by associated with severe clinical outcomes.

Original languageEnglish (US)
Pages (from-to)78-85
Number of pages8
JournalGERMS
Volume7
Issue number2
DOIs
StatePublished - 2017

Keywords

  • Drug sensitivity
  • India
  • Non-vaccine serotype
  • Streptococcus pneumoniae
  • Vaccine coverage

ASJC Scopus subject areas

  • Epidemiology
  • Immunology and Microbiology(all)
  • Public Health, Environmental and Occupational Health
  • Microbiology (medical)
  • Infectious Diseases

Fingerprint

Dive into the research topics of 'Streptococcus pneumoniae serotype prevalence and antibiotic resistance among young children with invasive pneumococcal disease: Experience from a tertiary care center in South India'. Together they form a unique fingerprint.

Cite this