Evidence for influenza A virus infection among patients with respiratory tract infections in Nigeria

摘要

Background: Influenza viruses cause a highly contagious acute respiratory disease that has resulted in epidemic and pandemic in human populations over the years. In February 2006, poultry outbreaks of highly pathogenic avian influenza A (H5N1) virus were confirmed in Nigeria. A survey was therefore set up to assess the role of influenza A virus in several respiratory tract infections seen in some hospitals in some hospitals in Lagos, Nigeria.