TABLE 2.

Clones and RFLP types recovered from water, control, and patient samples

Control no. sample type, or patient no.	Visit	No. of clones analyzed	No. of RFLP types
Controls
1	First	55	22
	Second	50	15
2	First	46	19
	Second	62	22
3	First	49	15
	Second	50	22
4	First	49	14
	Second	43	18
5	First	48	15
	Second	36	11
Watera	Singlea	55	15
Patients
1	First	44	10
	Second	49	15
2	First	50	11
	Second	49	14
3	First	46	28
	Second	37	15
4	First	48	8
	Second	49	11
5	First	50	18
	Second	50	21

^aThe water sample was obtained only once.