TABLE 1.

Prevalence and contamination level of B. cereus isolated from aquatic products.

Type	Prevalence rate (%)a	MPN value (MPN/g)b
		MPN < 3 (%)	3 ≤ MPN < 1100 (%)	1100 ≤ MPN (%)
Finfish	134/523 (25.62)	28/134 (20.90)	102/134 (76.12)	4/134 (2.99)
Mollusks	45/193 (23.32)	10/45 (22.22)	35/45 (77.78)	0/45 (0.00)
Crustaceans	40/144 (27.78)	3/40 (7.50)	37/40 (92.50)	0/40 (0.00)
Total	219/860 (25.47)	41/219 (18.72)	174/219 (79.45)	4/219 (1.83)

^aPrevalence rate = number of positive samples/total samples. ^bMPN value (MPN/g) = most probable number of B. cereus per gram sample.