Avian influenza viruses in humans: lessons from past outbreaks

Background Human infections with avian influenza viruses (AIV) represent a persistent public health threat. The principal risk factor governing human infection with AIV is from direct contact with infected poultry and is primarily observed in Asia and Egypt where live-bird markets are common. Areas of agreement Changing patterns of virus transmission and a lack of obvious disease manifestations in avian species hampers early detection and...