Brief introduction of emerging avian influenza a virus

In recent decades, some fatal or neglected viral infectious diseases have been disseminated to many countries or caused several re-emerging outbreaks. Accordingly, the dissection of pathogenic mechanisms of these diseases, high sensitive novel diagnostic assay reaction and improvement, vaccine development and new drug discovery of these disease are essential actions to control and prevent these disease outbreak or re-occurrence. In recent years, Asia and Southeast Asian countries face the problem of recurrent attacks by emerging or re-emerging viral diseases, which include avain influenza A virus, enterovirus, dengue virus and zika virus. Here, we briefly introduce the updated information on avian influenza A virus status and its current diagnostic assays.