Surveillance of Influenza A Virus and Its Subtypes in Migratory Wild Birds of Nepal
Author(s) -
Dibesh Karmacharya,
Sulochana Manandhar,
Ajay Sharma,
Tarka Raj Bhatta,
Pratikshya Adhikari,
Adarsh Man Sherchan,
Bishwo Shrestha,
Manisha Bista,
Rajesh Man Rajbhandari,
M S Oberoi,
Khadak Bisht,
JeanMarc Hero,
Ravi Dissanayake,
Maheshwar Dhakal,
Jane Hughes,
Nitish Debnath
Publication year - 2015
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0133035
Subject(s) - influenza a virus subtype h5n1 , flyway , influenza a virus , biology , avian influenza virus , reassortment , virus , biological dispersal , subclinical infection , geography , virology , veterinary medicine , environmental health , ecology , covid-19 , medicine , population , disease , infectious disease (medical specialty) , pathology , habitat
Nepal boarders India and China and all three countries lie within the Central Asian Flyway for migratory birds. Novel influenza A H7N9 caused human fatalities in China in 2013. Subclinical infections of influenza A H7N9 in birds and the potential for virus dispersal by migratory birds prompted this study to assess avian H7N9 viral intrusion into Nepal. Surveillance of influenza A virus in migratory birds was implemented in early 2014 with assistance from the Food and Agricultural Organization (FAO). Of 1811 environmental fecal samples collected from seven wetland migratory bird roosting areas, influenza A H9N2 was found in one sample from a ruddy shelduck in Koshi Tappu Wildlife Reserve located in southern Nepal. Avian H7N9 and other highly pathogenic avian influenza viruses were not detected. This study provides baseline data on the status of avian influenza virus in migratory bird populations in Nepal.
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