A strain of bird flu called D1.1 has been found in dairy cows in Nevada and has infected a dairy worker in the state. This strain has a mutation that could potentially make it easier to spread among mammals. The virus was detected through the National Milk Testing Strategy, which tests dairy cow milk for bird flu. This marks the second time the virus has moved from birds to cows.
Experts are closely monitoring the situation, as it is unclear how long this strain has been circulating in dairy cows and what its implications may be. While the virus has not been deadly in dairy cows, it has caused significant damage to poultry farms. The infected dairy worker in Nevada had mild symptoms and has since recovered, with no close contacts falling ill.
The CDC estimates that D1.1 was responsible for 15 human cases of bird flu last year, with most cases resulting in mild symptoms. The CDC recommends stepping up testing for bird flu in hospitalized patients within 24 hours of admission. While the risk to the general public is low, experts are preparing for the possibility of the virus spreading from person to person in the future.
In conclusion, the emergence of D1.1 in dairy cows and the infection of a dairy worker in Nevada highlight the importance of monitoring and preparing for potential changes in the virus. The situation underscores the need for continued vigilance and preparedness in the face of potential influenza pandemics.
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