Enhancement of influenza virus multiplication by chicken serum.
D000818:Animals; D002645:Chickens; D002918:Chymotrypsin / Q000494:pharmacology; D003470:Culture Media; D046508:Culture Techniques; D003851:Deoxyribonucleases; D005321:Extraembryonic Membranes; D009975:Orthomyxoviridae; D010206:Papain / Q000494:pharmacology; D010447:Peptide Hydrolases; D014357:Trypsin / Q000494:pharmacology; D014779:Virus Replication
D003470:Culture Media; D003851:Deoxyribonucleases; D010447:Peptide Hydrolases; D002918:Chymotrypsin; D014357:Trypsin; D010206:Papain