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The Indian Journal of Pediatrics

, Volume 85, Issue 6, pp 415–419 | Cite as

Mycoplasma pneumoniae in Community-Acquired Lower Respiratory Tract Infections

  • Surinder Kumar
  • Indu Bala Garg
  • Gulshan Rai Sethi
Original Article

Abstract

Objective

To determine the role of Mycoplasma pneumoniae (M. pneumoniae) in pediatric lower respiratory tract infections (LRTIs) employing serological tests and polymerase chain reaction (PCR) analysis.

Methods

In this prospective study, 200 children aged 6 mo to 12 y hospitalized with acute LRTIs were investigated for M. pneumoniae. Serum samples were collected for serological analysis of M. pneumoniae. Throat swab samples were obtained on admission to amplify 277-base pair region of 16S rDNA gene of M. pneumoniae by PCR.

Results

In the present study, 40(26.1%) children <5 y and 28(59.5%) children ≥5 y age group were positive for M. pneumoniae infection and this difference was statistically significant (P < 0.001). M. pneumoniae was positive in 32(41%) female and 36(29.5%) male children though this difference was statistically insignificant (P = 0.12). The clinical profile across M. pneumoniae positive and negative cases were comparable except for presence of chest pain which was statistically significant (P = 0.023). None of the radiological findings was statistically associated with incidence of M. pneumoniae infection. Serological evidence of acute M. pneumoniae infection was observed in 64(32%) patients with sensitivity 66.6% and specificity 70.1% while PCR positivity in 12(6%) patients with sensitivity 12.5% and specificity 97%. Together, serology and PCR detected M.pneumoniae infection in 68(34%) patients.

Conclusions

The present study underlines the role of M. pneumoniae in children with community- acquired LRTIs and more particularly in ≥5 y of age.

Keywords

Mycoplasma pneumoniae Polymerase chain reaction Pediatric Serology 

Notes

Contributions

SK: Conceptualized and designed the study, designed data collection instruments, collected data, carried out initial analyses, drafted the initial manuscript, and approved the final manuscript as submitted; IBG and GRS: carried out the further analyses, reviewed and revised the manuscript, and approved the final manuscript as submitted. SK will act as guarantor for this paper.

Compliance with Ethical Standards

Conflict of Interest

None.

Source of Funding

University Grants Commission, Bahadurshah Zafar Marg, New Delhi, India, sanctioned the financial assistance for this major research project vide sanction letter No. F.No. 32–575/2006(SR), dated: 07–03-2007.

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Copyright information

© Dr. K C Chaudhuri Foundation 2018

Authors and Affiliations

  1. 1.Department of MicrobiologyMaulana Azad Medical CollegeNew DelhiIndia
  2. 2.Department of PediatricsMaulana Azad Medical CollegeNew DelhiIndia

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