Diversity in the Enteric Viruses Detected in Outbreaks of Gastroenteritis from Mumbai, Western India

Shobha Chitambar, Varanasi Gopalkrishna, Preeti Chhabra, Pooja Patil, Harsha Verma, Anismrita Lahon, Ritu Arora, Vaishali Tatte, Sujata Ranshing, Ganesh Dhale, Rajendra Kolhapure, Sanjay Tikute, Jagannath Kulkarni, Renu Bhardwaj, Sulbha Akarte and Sashikant Pawar
Additional contact information
Shobha Chitambar: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Varanasi Gopalkrishna: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Preeti Chhabra: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Pooja Patil: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Harsha Verma: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Anismrita Lahon: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Ritu Arora: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Vaishali Tatte: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Sujata Ranshing: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Ganesh Dhale: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Rajendra Kolhapure: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Sanjay Tikute: Enteric Viruses Group, National Institute of Virology, 20-A, Dr. Ambedkar Road, Pune 411001, India
Jagannath Kulkarni: Department of Pathology, Gokuldas Tejpal Hospital, Lokmanya Tilak Marg, Fort, Mumbai 400001, India
Renu Bhardwaj: Department of Microbiology, Sir Jamshedjee Jeejeebhoy Hospital, Byculla, Mumbai 400008, India
Sulbha Akarte: Department of Preventive and Social Medicine, Sir Jamshedjee Jeejeebhoy Hospital, Byculla, Mumbai 400008, India
Sashikant Pawar: Department of Preventive and Social Medicine, Sir Jamshedjee Jeejeebhoy Hospital, Byculla, Mumbai 400008, India

IJERPH, 2012, vol. 9, issue 3, 1-21

Abstract: Faecal specimens collected from two outbreaks of acute gastroenteritis that occurred in southern Mumbai, India in March and October, 2006 were tested for seven different enteric viruses. Among the 218 specimens tested, 95 (43.6%) were positive, 73 (76.8%) for a single virus and 22 (23.2%) for multiple viruses. Single viral infections in both, March and October showed predominance of enterovirus (EV, 33.3% and 40%) and rotavirus A (RVA, 33.3% and 25%). The other viruses detected in these months were norovirus (NoV, 12.1% and 10%), rotavirus B (RVB, 12.1% and 10%), enteric adenovirus (AdV, 6.1% and 7.5%), Aichivirus (AiV, 3% and 7.5%) and human astrovirus (HAstV, 3% and 0%). Mixed viral infections were largely represented by two viruses (84.6% and 88.9%), a small proportion showed presence of three (7.7% and 11%) and four (7.7% and 0%) viruses in the two outbreaks. Genotyping of the viruses revealed predominance of RVA G2P[4], RVB G2 (Indian Bangladeshi lineage), NoV GII.4, AdV-40, HAstV-8 and AiV B types. VP1/2A junction region based genotyping showed presence of 11 different serotypes of EVs. Although no virus was detected in the tested water samples, examination of both water and sewage pipelines in gastroenteritis affected localities indicated leakages and possibility of contamination of drinking water with sewage water. Coexistence of multiple enteric viruses during the two outbreaks of gastroenteritis emphasizes the need to expand such investigations to other parts of India.

Keywords: adenovirus; Aichivirus; astrovirus; enterovirus; norovirus; rotavirus; gastroenteritis outbreak (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2012
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