H7N9 disease Ace myhomework myhomework writers acemywork

The previously known subgroups of this group include the H7N2, H7N3 and H7N7 and these have been linked to human infections in many parts of the world. The current strain of H7N9, which has been confirmed to have infected about 82 people in China, is considered to be more virulent that the previous strains of H7 viruses that have infected humans.