Bird flu has been making the rounds in the United States over the last year and appears to be resurging again. Here’s what you need to know.

H5N1 vaccines have been previously licensed, and millions are in the national stockpile. But even with the news of the country’s first human death due to bird flu, vaccination isn’t yet recommended.

No human cases of bird flu have been confirmed in New York, but the virus has emerged among animals. Public health leaders are preparing, just in case.

An avian flu outbreak in NSW has been eradicated, health authorities say, as the state joins Victoria in lifting restrictions on poultry and egg producers.