Characterization of A/eq-1 virus isolated during the equine influenza epidemic in India.

The research paper reveals the characterization of the equine influenza virus A/eq-1, isolated in India during an epidemic in 1987, and identifies it to be the same subtype as the prototype A/eq/Prague/1/56 (H7N7) virus.

Research Background

• The research centers around the A/eq/Ludhiana/5/87 virus, also referred to as the equine influenza virus, which caused an epidemic outbreak in India in 1987.
• Main objective was to study and analyze its characteristics especially in relation to the prototype A/eq/Prague/1/56 (H7N7) virus.

Methodology

• Haemagglutination-inhibition test was used as the primary method for studying the viral strain that was isolated from the clinical material obtained during the 1987 equine influenza epidemic in India.
• The antiserum against the prototype A/eq/Prague/1/56 (H7N7) virus along with post-epidemic horse serums were used to inhibit the Ludhiana/5/87 virus in the test.

Result of the Analysis

• The haemagglutinin and neuraminidase analyses of the virus isolate were conducted to determine its subtype.
• The A/eq/Ludhiana/5/87 isolate exhibited similarities to the prototype A/eq/Prague/1/56 virus under these examinations.
• Upon comparison and analysis, the isolated equine influenza virus was characterized as the subtype H7N7.

Significance of Research

• The findings of this research have helped in identifying the influenza strain causing equine influenza viruses in horses, aiding in preventive and curative measures against the disease.
• The similarities with the A/eq/Prague/1/56 (H7N7) prototype virus provide inputs for creating suitable vaccines and treatments.