A new strain of avian flu has mutated and is killing baby seals , scientists say . More than 100 dead seals showed up on the New England coast last year . Avian flu has spread to humans before , most notably H1N1 and H5N1 , so the new strain could pose a threat to public health , scientists warned . The new virus could theoretically be a threat to human health , scientists say .
A new strain of avian flu has mutated and is killing baby seals , scientists say . More than 100 dead seals showed up on the New England coast last year . The new virus could theoretically be a threat to human health , scientists say .