Waterfowl are considered as the important host of influenza a viruses, especially domestic ducks.
Objective: to observe the inhibitory effects of the serum containing drugs of Qinbai Qingfei Concentrated pellets (S-QQCP) on influenza a virus.
Wild waterfowl are the natural reservoir of all influenza a viruses, and these viruses are usually nonpathogenic in these birds.
It is an infection caused by the avian influenza a virus, thought to originate from wild water-birds who can carry the virus without showing any symptoms of sickness.
Oligonucleotides, use thereof, detecting method and kit for diagnosing the presence of H5 and N1 genes of the influenza a virus.
Results: According to hemagglutination titer, it was proved that most of Radix Isatidis and Folium Isatidis were effective to influenza a virus in 3 aspects: direct, therapeutic and preventive action.
Conclusion Lianhua Qingwen Capsule has an obvious effect against human influenza a virus in vitro.
It is expected that the pandemic virus will behave as a seasonal influenza a virus.
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