Public health risk from avian influenza viruses

摘要: Since 1997, avian influenza (AI) virus infections in poultry have taken on new significance, with increasing numbers of cases involving bird-to-human transmission and the resulting production clinically severe fatal human infections. Such been sporadic are caused by H7N7 H5N1 high-pathogenicity (HP) H9N2 low-pathogenicity (LP) AI viruses Europe Asia. These raised level concern health agencies for potential reassortment genes generation next pandemic A virus. The presence endemic HPAI several Asian countries indicates that these will continue to contaminate environment be an exposure risk infection. Furthermore, reports mammalian and, particular, mammal-to-mammal humans tigers unprecedented. However, subsequent generating a strain is unknown. More international funding from both animal diagnosis or detection control Asia needed. Additional research needed understand why how infect what risks they pose.