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The U.S. Department of Agriculture reported on the 11th that a dairy farm in South Dakota was found to have dairy cows infected with highly pathogenic avian influenza virus. This is the eighth state in the U.S. to report similar cases recently. The bird flu outbreak has nerves on the nerves of U.S. dairy farmers, who have erected barriers to outsiders, cut down nearby trees to prevent wild birds from stationing, and disinfected the tires of cars entering the dairy farms...... 01 Suspected of "cattle descendants"
The USDA has previously reported cases of avian influenza in dairy cows in seven states: Texas, Kansas, Ohio, Michigan, Idaho, New Mexico and North Carolina. Following the confirmation of the first confirmed infections in dairy cows by the U.S. health department on March 25, Texas reported on April 1 that a dairy farm worker was infected with the avian influenza virus. According to the U.S. Centers for Disease Control and Prevention, this is likely to be the first case of human transmission of highly pathogenic avian influenza virus from a mammalian in the United States. The vast majority of known human cases of avian influenza around the world are "bird-to-human" and a few are "human-to-human".
Workers milk cows at a dairy farm in Iowa, U.S., Oct. 16, 2019. Xinhua News Agency reporter Wang Yingzhi The US Centers for Disease Control and Prevention said that although the risk of human infection with avian influenza is not high, states still need to develop contingency plans to provide testing and treatment for potentially affected farm workers. Based on available indications, the first cases of sick cattle found in Texas and Kansas were transmitted by wild birds, but according to the USDA, the avian influenza virus could also be transmitted from cows to each other. 02 Anti-bird and anti-people
Reuters reporters visited seven dairy farmers in five states, where additional safety and cleanliness measures are being put in place, some even stricter than the government's recommendations. Karen Jordan, who raises about 200 cows in Sele City, North Carolina, said, "Our farm is now a well-gated cow community, and only essential people can get in and out of that door." Before the outbreak began in the state, she had taken precautions to limit visitors from inadvertently bringing the avian flu virus into dairy farms because their shoes or cars were stained with bird droppings. She is cutting down about 40 small trees so that wild birds don't come here to rest during the spring migration season. In Blancheburg, Indiana, Steve Aubert, a 61-year-old dairy farmer and executive director of the Indiana Dairy Producers Alliance, has set a new rule for his dairy farm: Drivers must spray their tires with disinfectant before any truck enters its territory. Aubert raised about 1,200 cows and supplied milk to American dairy companies. The latter is a cooperative of more than 6,000 dairy farms. Large dairy farms, he said, are at greater risk of infection, partly because they have a lot of fodder on the farm, which makes it easier to attract wild birds, and on the other hand, they often have to transport heifers that have not yet given birth to other states to breed and then come back to calve and produce milk, which also makes it easier to bring back viruses from outside. 03 The dairy industry is worried about the market
The USDA has not ordered mandatory quarantine of affected dairy farms, but it advises dairy farmers and dairy producers to be vigilant, strengthen herd surveillance, minimize the transport of lactating cows, and monitor milk samples in advance if transported. The Ministry of Agriculture also reminded dairy farmers to "pay special attention to maintaining good milking practices, such as disinfection of equipment". Animal control officials say that although it has not been confirmed, milking machines could be part of the chain of transmission of the virus from cow to cow.
On May 13, 2022, in Rosemead, California, USA, there was a large shortage of infant formula on the shelves of a supermarket (mobile phone photo). Xinhua News Agency (photo by Zeng Hui) Many state health departments have issued similar recommendations and epidemic prevention measures, but Indiana has not imposed additional restrictions on the transportation of dairy cows. Mr. Obert said he trusted the government's decisions, but as a producer, he was a little worried about whether it was "moving slowly." Unlike poultry that have died in large numbers after being infected with avian influenza, cows in the United States that have been confirmed to have mild symptoms. The USDA says the current outbreak on dairy farms primarily affects lactating cows. Dairy farmers have had to isolate sick cattle and the milk they produce is not able to enter the supply chain, which has reduced milk production in the affected areas. According to Reuters, the value of milk production in the United States reached nearly $60 billion in 2022. In this wave of the outbreak, the USDA initially detected the avian influenza virus in samples of unpasteurized milk sent by the United States, and although agricultural officials promised that pasteurized milk would be safe to eat, U.S. dairy farmers were concerned that the outbreak would reduce consumer demand for milk, cheese and other dairy products. Milk futures prices fell last week and then recovered. Although no avian influenza virus has been detected in beef cattle, beef cattle futures prices have also fallen sharply due to market concerns.
Source: Xinhua News Agency
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