The bird flu outbreak in dairy cattle that's swept across nine U.S. states is posing perplexing questions about how the virus is spreading between animals and the risk posed to humans.
Why it matters: Detecting viral spread early and limiting how long the flu circulates in a population of animals cuts the odds it will mutate and adapt to other species.
Undocumented immigrants who came to the U.S. as children can enroll in health insurance through the Affordable Care Act marketplaces for the first time this fall, the Biden administration announced Friday.
Why it matters: An estimated 100,000 previously uninsured people in the Deferred Action for Childhood Arrivals (DACA) program could get health coverage, the administration estimates.
