Table 1.

Occurrence of Cryptosporidium oocysts in the river water samples selected periodically from 6 intakes of the Han River in South Korea (2000-2009, n = 240)

^aR1, Paldang; R2, Kangbuk; R3, Amsa; R4, Kuui; R5, Jayang; R6, Pungnap; ^b% of positive samples; ^carithmetic mean.