The patient had been in contact with sick and dead birds in backyard flocks, the Centers for Disease Control and Prevention said. Agency officials didn't immediately detail the person's symptoms. Previous illnesses in the U.S. had been mild and the vast majority had been among farmworkers exposed to sick poultry or dairy cows. This year, more than 60 bird flu infections have been reported, with over half of them in California. In two — an adult in Missouri and a child in California — health officials have not determined how they caught it. MORE: https://www.wthr.com/article/news/nation-world/louisiana-patient-first-severe-bird-flu-case-united-states/507-0986c7eb-be19-45ad-820c-55fdb4cca42c