Study identifies antibodies isolated from individuals with seasonal flu vaccinations that neutralize H7N9 and other influenza strains. February 17, 2015. Antibodies that protect against H7N9 avian flu, which emerged in China in 2013 and sparked fears of a global pandemic, have been isolated in individuals who received seasonal flu vaccinations.
Yes, some types of squirrels live in trees. Both flying squirrels and species of tree squirrels make their homes in the tree canopy. This includes red squirrels, Eastern gray squirrels, Eastern fox squirrels, Douglas squirrels, Western gray squirrels and other species.
How long do they live? Most northern flying squirrels live less than four years in the wild. Northern flying squirrels are clumsy on the ground, but can glide gracefully up to 48 m (160 feet) from tree to tree. Northern flying squirrels sometimes share nests and may live in groups of up to 8 adults and juveniles.