China reports first human case of H7N4 bird flu
China has reported the first human case of the H7N4 strain of bird flu in a woman in an eastern coastal province, though she has since recovered. The winter is traditionally the high season for bird
China has reported the first human case of the H7N4 strain of bird flu in a woman in an eastern coastal province, though she has since recovered. The winter is traditionally the high season for bird