As of Wednesday, more than 135 dairy herds in a dozen states had reported infections with the H5N1 virus that originated in poultry, according to the Agriculture DepartmentThe worker had direct contact with infected dairy cows on a northeast Colorado farm, state and federal health officials said. The man developed pink eye, or conjunctivitis, received antiviral treatment and has recovered.have been reported in dairy workers in Texas and Michigan since March.
The Colorado man was being monitored when he developed symptoms because of his work with dairy cows, according to the CDC. Tests at the state level were inconclusive, but samples sent to CDC tested positive. Full results of genetic analysis of the sample are pending.As of Wednesday, more than 135 dairy herds in a dozen states had reported infections with the H5N1 virus that originated in poultry, according to the Agriculture Department.