Virulence and Immunogenicity in Mice of Airborne Encephalomyocarditis Viruses and Their Infectious Nucleic Acids
Autor: | T. G. Akers, S. B. Bond, C. Papke, W. R. Leif |
---|---|
Rok vydání: | 1966 |
Předmět: | |
Zdroj: | The Journal of Immunology. 97:379-385 |
ISSN: | 1550-6606 0022-1767 |
DOI: | 10.4049/jimmunol.97.3.379 |
Popis: | Summary Mice were exposed to aerosols of different strains of the encephalomyocarditis virus group. Responses in mice were different according to strains, virulence being correlated with plaque size. Small plaque-forming strains, ME and Mengo-37A (a heat-resistant mutant of Mengo), were essentially avirulent. The avirulent strains were immunogenic when in sufficient concentration. Aerosol studies with infectious RNA extracted from Mengovirus, ME, and Mengo-37A indicated that the responses in mice were similar to those observed with intact virus. Mengovirus RNA aerosols were lethal for mice, whereas Mengo-37A and ME RNA were avirulent and were not immunogenic in the limited aerosol concentration tested. Mice immunized with intact Mengo-37A virus were refractory to Mengo RNA aerosol challenge. |
Databáze: | OpenAIRE |
Externí odkaz: |