title: On the importance of the s marker in differentiation of attenuated and non-attenuated strains of measles virus.
mesh_terms: D046508:Culture Techniques; D003588:Cytopathogenic Effect, Viral; D008458:Measles Vaccine; D008459:Measles virus; D014774:Virulence; D014776:Virus Cultivation
chemical_list: D008458:Measles Vaccine