A bird flu outbreak in the U.S. that led to the deaths of more than 40 million chickens and turkeys and contributed to a spike in egg and meat prices appears to be waning, but experts caution the virus hasn’t disappeared and worry another surge could take hold this fall.
The number of birds culled to limit its spread dropped from a peak of almost 21 million in March to less than 800,000 in May. However, more than 2 million birds have been killed already this month after infections were discovered at two large farms in Colorado.
