%0 Journal Article %T Addendum %D 1977 %J Journal of General Virology, %V 35 %N 3 %P 598-598 %@ 1465-2099 %R https://doi.org/10.1099/0022-1317-35-3-598-a %I Microbiology Society, %X %U https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-35-3-598-a