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Three of dairy veterinarians, including the person who worked only in states with no known outbreak of birds in cows, have modern influenza infections that have not been discovered, according to what they mentioned New study One of the centers of control and prevention of diseases. The results are based on the antibody test of 150 veterinarians working in 46 US states.
Experts said the results were not completely surprising, but indicate that the virus, known as H5N1, could affect cows and people in more states than officially reported.
“We do not know how out the outbreak of the fascism in the United States,” said Sima Lakdala, a virus at Emory University. “It is clear that there is an infection that is missing.”
Since the outbreak of bird flu in dairy cows for the first time last March, the virus has been confirmed in More than 950 pieces In 16 states. It was also discovered in 68 people, 41 of He was in contact with pathological cows. Most people had mild symptoms.
The new study, which was published in the Greek Report and Deaths report at the Disease Control Center, was initially scheduled to publish several weeks ago, but was delayed by the Trump administration in public communications from health and science agencies.
“It is important to prepare for public health that we have these data,” said Dr. Nahda Bahdilia, Director of the Boston University Center for Emerging Diseases.
The study was conducted at a veterinary conference last September; Veterinary doctors participating in 46 different states, as well as in Canada. Among the 150 veterinarians enrolled in the study, 25 of them reported their work with cows that were known to have or suspected bird flu.
Three veterinarians are a positive test for antibodies to the virus. None of these three veterinarians mentioned about working with cows believed to contain bird flu. (One of them was working with the affected poultry.) None of them remembered any equal symptoms.
One of the veterinarians was only working with cows in Georgia and South Carolina, and no affected herds were reported.
“I think we are all suspected that there are many countries, which are likely, as the virus is discovered,” said Dr. Bahdillia.
Dr. Lakdawal said that she was surprised that none of the 25 veterinarians who knew that they had worked with the affected cows had proven positive for antibodies. But it is possible that those who knew they were working with the affected animals “take more precautions.”
None of the three veterinarians who tested positively for antibodies did not mention masks or protective glasses. These precautions are not recommended when working with healthy animals in the affected areas, as the study indicates.
Dr. Lakdala said that how veterinarians have been infected specifically, and veterinary doctors may be less in contact with milk full of viruses from farm workers who spend their days in the milking halls.
She said: “The veterinarians we spoke to on these farms are participating in all aspects of care for these animals.” “They are all above these cows, and they look at everything.”
Experts said the results highlighted the need for more tests, including the test of dairy workers without symptoms and cows veterinarians, as well as expanded tests to supply milk in the country.
The US Department of Agriculture announced a national program to test the larger milk samples in December. As of February 7, 40 countries It was registered and the test is actively taking place. In Nevada, the wholesale test of milk recently revealed that dairy herds had a new version of the virus, distinguished from those that were spreading in dairy cows during the past year.
Dr. Baadilia said: “The countries that were not on board the milk test must do, just do not assume that it did not have its herds that they have a little space.”
When the study was conducted last fall, the virus was discovered in herds of dairy in 14 states, as well as in 14 people, four of whom were in contact with dairy cows.
Apoorva Mandavilli The reports contributed.