TABLE 1.

Titer and mean recombination frequency after coinfection of virus A and virus G at an MOI of 5 for each virus

Time (h) postcoinfection	Titer (PFU/ml)	Total no. of plaques and phenotype				Mean recombination frequencya (%) ± SD
		polh−		polh+
		lacZ−	lacZ+	lacZ−	lacZ+
2	5.6 × 104	231	0	0	262	0 ± 0
12	1.2 × 105	182	0	0	268	0 ± 0
15	2.5 × 105	171	26	21	210	11.0 ± 0.5
18	2.7 × 106	250	88	110	258	28.3 ± 2.6
24	2.1 × 107	207	93	99	292	28.5 ± 3.3
48	1.6 × 108	190	45	71	163	24.7 ± 1.1

^aThat is, [(polh⁻ lacZ⁺ + polh⁺ lacZ⁻) ÷ (polh⁻ lacZ⁻ + polh⁻ lacZ⁺ + polh⁺ lacZ⁻ + polh⁺ lacZ⁺)] × 100%.