As the U.S. flu season winds down, health officials say the flu vaccine didn't work very well, with one of its worst effectiveness rates in more than a decade.
Is this avian influenza virus changing to become more transmissible? How concerned should we be? Here's what we know so far.
The risk to the general public remains low, according to the Centers for Disease Control and Prevention.
It comes after the first human case of bird flu was identified in Texas last month and also linked to cattle.
As federal agencies work to mitigate the potential threat of bird flu to Americans and their food supply, infectious disease experts are offering simple steps you can take to keep you and your family safe.
Across the country, 38 states are experiencing high or very high levels of respiratory illness activity, including California.