 but it's there especially among workers. For workers, there should be education of workers about the signs and the symptoms. There should be protections for them to be able to take the time off to recover from that if they become sick. A dairy worker in Texas and two in Michigan also had confirmed cases of the virus. About one quarter of Colorado's dairy herds have been quarantined after positive tests for the avian flu since this spring. For NPR News, I'm John Daly.