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. 2000 Aug;66(8):3241–3248. doi: 10.1128/aem.66.8.3241-3248.2000

TABLE 2.

Detection of enteric viruses in the five shellfish-sampling points during the 3-year study

Date Presence of virusa
Site A
Site B
Site C
Site D
Site E
EV HAV NLV AV RV FCsb EV HAV NLV AV RV FCs EV HAV NLV AV RV FCs EV HAV NLV AV RV FCs EV HAV NLV AV RV FCs
1995
 Aug ND ND <30 + 140 + + ND
 Sep + 500 57 <30 + ND + + + + + 3,400
 Oct + <30 <30 <30 + 78 + + 300
 Nov + 30 + 60 + <30 + + + 832 + + ND
 Dec + + + 640 + <30 159 + + + + + 1,789 + + + + ND
1996
 Jan + + + 2,970 + + + 300 + 51 + + + + 2,600 + + + + 3,380
 Feb + + 213 + + + <30 + <30 733 + + + ND
 Mar + + ND + + + ND + + <30 7,800 + + + + ND
 Apr ND ND <30 + + + <30 + + 243
 May <30 <30 + + 2,970 NS NS NS NS NS NS + + 128
 Jun <30 + 45 <30 + + + 1,390 + + <30
 Jul + + ND ND 139 128 ND
 Aug + <30 + 49 + <30 + + <30 + + + + 128
 Sep ND + ND + 143 <30 + + ND
 Oct <30 ND + ND + + + 80 + + 404
 Nov + + 108 + 47 + <30 + + + + 2,020 + + + + 46
 Dec + + + + <30 + + + + 341 + + + + <30 + + + + + 875 + + + + 760
1997
 Jan + + + + 937 + + + + 31 + + + + <30 + + + + + 1,100 + + + + ND
 Feb <30 <30 + <30 + + + + + 48 + 520
 Mar <30 <30 <30 + + + <30 + + + <30
 Apr <30 232 + <30 <30 + + <30
 May 2,970 130 <30 139 + + 645
 Jun + 95 + <30 <30 + 500 <30
 Jul 53 + <30 + 115 <30 3,870
 Aug <30 + <30 NS NS NS NS NS NS 387 + 83
 Sep + <30 + <30 + <30 1,200 + 341
 Oct + 36 + <30 + <30 44 + + 264
 Nov + <30 NS NS NS NS NS NS <30 44 + + 3,350
 Dec + <30 NS NS NS NS NS NS + <30 + + + 233 + + + 265
1998
 Jan + + 41 + 139 + <30 + + 2,280 + + 937
 Feb 47 + <30 <30 + + 568 + 387
 Mar + 197 <11 + <11 + + ND + + + + ND
 Apr + <30 <30 3,380 + + 265 + + + + 341
 May 5,670 <30 300 261 3,380
 Jun + <30 <30 <30 + 205 + <30
 Jul <30 69 <30 265 122
 Aug + 53 <30 <30 568 53
a

+, sample found positive by RT-PCR and hybridization for EV, HAV, NLV, AV, or RV. 

b

FC concentration (most probable number/100 g of shellfish) detected in the shellfish sample. Underlined numbers indicate the presence of Salmonella; ND, not done; boldface numbers, above the acceptable European bacterial standard (forbidden for human consumption); all others are in accordance with the European bacterial standard for human consumption; NS, no sample.