Lessons from 40 years' surveillance of influenza in England and Wales
Lessons from 40 years' surveillance of influenza in England and Wales
SUMMARY The influenza virus continues to pose a significant threat to public health throughout the world. Current avian influenza outbreaks in humans have heightened the need for improved surveillance and planning. Despite recent advances in the development of vaccines and antiviral drugs, seasonal epidemics of influenza continue to contribute significantly …