-

11 3 1

46

23

(Norwalk-like virusNLVs)

(Norovirus)

GIGIIGIII

GI GII GIII GIV

27~32m RNA

~

()

1.

2.

3.

244812

48

2448 12

12

2-3

()

8030

0.5%5000ppm30

0.1%1000ppm

5% 0.5% (5000ppm) 1 + 10

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