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A 27-Amino Acid Deletion in the NA Stalk Supports Respiratory Replication of an Avian H2N2 Influenza A virus in Chickens.
http://www.ncbi.nlm.nih.gov/pubmed/20826691
A/mallard/Potsdam/178-4/83 (H2N2),
This stalk deletion was shown to be responsible for the change in virus tropism from the intestine to the respiratory tract.
http://www.ncbi.nlm.nih.gov/pubmed/20826691
A/mallard/Potsdam/178-4/83 (H2N2),
This stalk deletion was shown to be responsible for the change in virus tropism from the intestine to the respiratory tract.