Respiratory Pathogens in Infants Diagnosed with Acute Lower Respiratory Tract Infection in a Tertiary Care Hospital of Western India Using Multiplex Real Time PCR.

Authors:
Jayanthi Shastri
Jayanthi Shastri
B.Y.L. Nair Charitable Hospital
India
Sandeep B Bavdekar
Sandeep B Bavdekar
Seth GS Medical College and KEM Hospital
India

Indian J Pediatr 2019 May 14;86(5):433-438. Epub 2019 Jan 14.

Department of Pediatrics, T.N. Medical College & B.Y.L. Nair Hospital, Mumbai, India.

Objective: To determine the frequency of respiratory pathogens in infants diagnosed with acute lower respiratory tract infections.

Methods: A prospective cross-sectional observational study was conducted in infants hospitalized with a diagnosis of acute lower respiratory tract infection (ALRTI), in a tertiary care hospital in a metropolitan city of Western India. Nasopharyngeal swabs were analyzed by multiplex real time polymerase chain reaction, for 18 viruses and 3 bacteria (H. influenzae type b, C. pneumoniae and M. pneumoniae). The entire data was entered in Microsoft excel sheet and frequencies were determined.

Results: One hundred eligible infants were enrolled. Pathogens were detected in 82 samples, which included Respiratory syncytial viruses (RSV) A / B (35.4%), Human rhinovirus (25.6%), Adenovirus (22%), Human Parainfluenza viruses (11%), Human bocavirus (9.8), Human metapneumovirus A / B (8.5%), Influenza A (H1N1) pdm 09 (6.1%), Parechovirus (3.7%), Human coronaviruses (3.66%), Haemophilus influenzae type b (6.1%), Chlamydia pneumoniae (2.4%) and Mycoplasma pneumoniae (2.4%). Influenza A (other than H1N1), Influenza B, Human Coronavirus 229E and Enterovirus were not detected. The rate of coinfection was 34% and rhinovirus was the most common of the multiple pathogens.

Conclusions: Spectrum of viral etiologies of ALRTI is highlighted. Etiological diagnosis of ALRTI would enable specific antiviral therapy, restrict antibiotic use and help in knowing burden of disease.

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http://dx.doi.org/10.1007/s12098-018-2840-8DOI Listing
May 2019
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