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Prevalence of virus by regiona
| Region | No. of samples positive/no. of samples tested (%) |
||
|---|---|---|---|
| NoV | HAV | NoV or HAV | |
| Gulf | 5/171 (2.9) | 11/171 (6.4) | 16/172 (9.3) |
| Mid-Atlantic | 3/97 (3.1) | 2/97 (2.1) | 5/97 (5.2) |
| North Atlantic | 4/53 (7.5) | 2/53 (3.8) | 6/53 (11.3) |
| Pacific | 3/59 (5.1) | 2/59 (3.4) | 5/59 (8.5) |
Data for which the region is Canada or unknown are excluded. No significant differences were observed (by Fisher's exact test [two sided]).
