Laboratory markers of virulence in influenza viruses.
D003470:Culture Media; D046508:Culture Techniques; D005321:Extraembryonic Membranes; D005827:Genetics, Microbial; D009439:Neuraminidase; D009975:Orthomyxoviridae / Q000201:enzymology / Q000472:pathogenicity*; D011773:Pyruvates; D012964:Sodium; D014774:Virulence
D003470:Culture Media; D011773:Pyruvates; D012964:Sodium; D009439:Neuraminidase