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The likelihood of the strain of highly pathogenic avian influenza (HPAI) found in US dairy cows reaching Europe is very low, according to new advice by the European Food Safety Authority (EFSA). However, EFSA’s experts conclude that should the virus arrive the impact on EU countries could be significant. To ensure preparedness, EFSA recommends raising awareness among farmers and veterinarians and strengthening surveillance for early detection.
Possible mitigation measures for animal health
As requested by the European Commission, EFSA focussed on the risk of infection of EU dairy cattle and poultry with the specific H5N1 genotype virus that is circulating in US dairy cattle and outlined possible mitigating measures to prevent its introduction and spread in Europe. These may include certain trade restrictions from affected regions and thoroughly cleaning milking equipment. In the event of an outbreak, coordinated action in both poultry and dairy cows is advised, to reduce the overall impact. 
To prevent the spread, experts recommend restricting cattle movement in affected areas, avoiding the exchange of workers, vehicles and equipment between farms, and enforcing strict biosecurity. These measures will also help contain other HPAI strains already present in Europe.
Milk and milk products
EFSA’s assessment also examines the potential for the virus to be transmitted through food. The primary route of consumer exposure to the virus would be through drinking raw milk, raw colostrum, or raw milk cream. However, experts emphasise that thermal treatment such as pasteurisation is highly effective at reducing the virus in milk and milk products. Importantly, there have been no reported cases of foodborne human infection with this specific genotype to date.
Link to science
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