France investigates possible transmission to pigs of a type of flu that mainly affects cattle

Published 2024년 12월 5일

Tridge summary

The French Agency for Food Safety and Health (ANSES) has reported the first detection of the influenza D virus in pigs in France, in a farm in Brittany where pigs and cattle are raised. This is a significant finding as the virus usually affects cattle and has only been detected in pigs in a few other countries. The virus was transmitted from cattle to pigs, likely due to their close proximity, and has two new mutations that could facilitate its adaptation to new species. Although the risk of transmission to humans is low, ANSES is emphasizing the need for careful monitoring due to pigs' role as intermediate hosts, which could facilitate the adaptation of influenza viruses to humans.

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Original content

The influenza D virus is an influenza virus that primarily affects livestock. However, the laboratory of the French Agency for Food Safety and Health (ANSES) in Ploufragan-Plouzané-Niort isolated this virus from pigs for the first time in France. This interspecies transmission shows the interest of research aimed at better studying a possible risk of transmission of the virus to humans. The disease was detected on a farm in Brittany that raises both pigs and cattle. When certain pigs began to cough and sneeze, the veterinarian in charge of the farm sent samples to a laboratory for analysis. Following these initial analyses, the ANSES laboratory in Ploufragan-Plouzané-Niort confirmed that the influenza D virus was the cause of the clinical signs observed. “Influenza D primarily affects cattle,” explains Gaëlle Simon, head of the laboratory’s Porcine Immunology and Virology Unit. “We knew that the virus could affect pigs, but this is the first time that it has been isolated in ...

Source: Agromeat