RT Journal Article SR Electronic(1) A1 Tsuchiya, Y. A1 Tagaya, I.YR 1972 T1 General Characteristics of Enhanced Plaque Formation by Poliovirus in Poxvirus-infected Cells JF Journal of General Virology, VO 14 IS 3 SP 229 OP 235 DO https://doi.org/10.1099/0022-1317-14-3-229 PB Microbiology Society, SN 1465-2099, AB SUMMARY The number and size of plaques formed by the saukett strain of poliovirus type 3 were enhanced in Yaba virus (YV)-infected cells. Similar enhancement occurred when Shope fibroma virus or a mutant strain of vaccinia virus was used instead of Yaba virus. Enhancement required at least 3 hr pre-infection and was greatest when cultures were pre-infected for 72 hr. An inoculum as small as 0.004 TCD50/cell was effective in enhancing poliovirus plaque number. Some characteristics of the enhancement by Yaba virus of plaque formation by Sindbis virus are also presented., UL https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-14-3-229