Prevalence of Variant Bacteria in Oropharyngeal Colonization of Iranian Children


Alireza Fahimzad 1 , * , Benyamin Karimi 1 , Mohammad Ali Malekan 1 , Ahmad Reza Shamshiri 2 , Masoomeh Mohkam 1 , Mostafa Sharifian 1 , Saeed Maham 1

1 Pediatric Infectious Research Center, Shaheed Beheshti Medical University, Tehran, Iran

2 School of Health and Institute of Health Research, Department of Epidemiology and Biostatistics, Tehran Universityof Medical Sciences, Tehran, IR Iran

How to Cite: Fahimzad A, Karimi B, Malekan M A, Shamshiri A R, Mohkam M, et al. Prevalence of Variant Bacteria in Oropharyngeal Colonization of Iranian Children, Arch Clin Infect Dis. Online ahead of Print ; 3(1):25-8.


Archives of Clinical Infectious Diseases: 3 (1); 25-8
Article Type: Research Article


Background: On the base of relation between oropharyngeal colonization of bacterial pathogens and etiology of invasive and noninvasive pediatric diseases, we evaluated their prevalence and relationship between them.

Materials and methods: The colonized bacteria in oropharynx of 296 children between 2-6 years old from 7 day care centers of Tehran were isolated and determined by specific diagnostic tests.

Results: Prevalence rates of bacterial colonization include Streptococcus pneumoniae (32.4 %), Haemophilus influenza (23.9%), Moraxella catarrhalis (13.5%), Neisseria meningitides (12.1%) and pseudomonas aeruginosa (2.7%). Our study showed the reverse relationship between colonization rate of Streptococcus Pneumoniae and Haemophilus influenza and between Neisseria meningitidis and Haemophilus influenzue.

Conclusion: Determination of colonized bacteria in oropharynx of healthy children and relationship between them can be helpful to find the ways to interfere with their colonization and prevention of diseases due to them.

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