A factor destroying virus receptors in pneumococcal cultures. I. Isolation and properties of the factor.
D022242:Pneumococcal Vaccines; D011991:Receptors, Virus; D013296:Streptococcus pneumoniae; D014780:Viruses / Q000208:ethnology*
D022242:Pneumococcal Vaccines; D011991:Receptors, Virus
DIPLOCOCCUS PNEUMONIAE; VIRUSES/culture