Variability of Western equine encephalomyelitis virus. I. Genetic markers of virus variants obtained by formaldehyde treatment and ultraviolet irradiation

MeSH terms

• Animals
• Chick Embryo
• Cytopathogenic Effect, Viral
• Encephalitis Viruses / drug effects*
• Encephalitis Viruses / pathogenicity
• Encephalitis Viruses / radiation effects*
• Formaldehyde / pharmacology
• Genetics
• Mice
• Protamines / pharmacology
• Ultraviolet Rays