Avian flu infects 1 more California dairy worker; CDC details sequencing from Washington cases

One more California dairy worker tests positive for avian flu

A second dairy worker in California has tested positive for the H5N1 avian influenza virus, state officials said Thursday. The worker was identified through routine surveillance testing and is not showing any symptoms, according to the California Department of Public Health. The worker joins another dairy worker in Stanislaus County who tested positive for the virus last month.

CDC releases genetic sequencing of H5N1 viruses from Washington state

Meanwhile, the Centers for Disease Control and Prevention (CDC) has released the genetic sequencing of the H5N1 viruses that infected two people in Washington state earlier this year. The sequencing data shows that the viruses are closely related to strains that have been circulating in poultry in the United States and Canada. The CDC said the viruses do not contain any mutations that would make them more transmissible or severe in humans.

Human cases of avian flu remain rare

Human cases of avian flu are rare, but they can be serious. The CDC recommends that people avoid contact with sick or dead birds and poultry, and to cook poultry thoroughly to kill any viruses that may be present.

Outbreaks in poultry continue

The H5N1 avian influenza virus has been detected in poultry in 47 states, according to the U.S. Department of Agriculture (USDA). The USDA is working to control the outbreaks and has ordered the culling of millions of birds.

What to do if you're exposed to avian flu

If you've been exposed to avian flu, you should see your doctor right away. Symptoms of avian flu can include fever, cough, sore throat, muscle aches, and fatigue. If you're diagnosed with avian flu, you'll be treated with antiviral medications.