TABLE 4.

Titer and mean recombination frequency after coinfection of virus A and virus L at an MOI of 50 or 0.1 for each virus

Time (h) postcoinfection	MOI	Titer (PFU/ml)	Total no. of plaques and phenotype				Mean recombination frequencya (%) ± SD
			polh−		polh+
			lacZ−	lacZ+	lacZ−	lacZ+
18	50:50	7.9 × 106	238	4	7	213	2.4 ± 0.2
	0.1:0.1	4.6 × 103	170	0	1	116	0.3 ± 0.4
24	50:50	3.3 × 107	111	8	5	123	4.6 ± 3.3
	0.1:0.1	2.8 × 105	140	0	0	96	0.0 ± 0.0
36	50:50	1.6 × 108	120	6	8	101	5.3 ± 1.7
	0.1:0.1	1.0 × 107	147	1	1	95	0.9 ± 0.3
48	50:50	2.5 × 108	133	6	5	111	4.4 ± 1.2
	0.1:0.1	6.2 × 107	138	4	4	85	4.0 ± 2.8

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