Table 1. Amount needed for sample processing of various V. cholerae stool grades.

Stool Grade	V. cholerae Plate Count (CFU/gram)	Amount Needed for Plate Count	Raw Sample Amount	Filter Paper Amount
1	0	1 gram	30 mg ± 1.4 mg	50 mg
3	106	1 mL or 1 gram	28 mg ± 4.2 mg	50–60 mg
4	107	1 mL	22.8–36 mg	40–50 mg
5	107−109	1 mL	23–44 mg	30–40 mg