TABLE 3.

Order of accumulation of the point mutations MA2, MP2, and MNC within mutated BH10-LD4 virus when cultured in MT-2 cells^a

Mutation	No. of clones with mutation during passage:
	3	4	5	7	10	13
MA2	0	0	0	1	3	6
MP2	2	5	6	6	6	6
MNC	0	1	6	6	6	6
LD4	6	6	6	6	6	6

^aSix clones were sequenced per passage. Bold indicates the first appearance the given mutation.