TABLE 1.
The toxin production and susceptibilities to antibiotics and environmental stresses of V. parahaemolyticusa
| Strain no. | Serotype | City or origin of travelers | Country of isolation | Date of isolation (yr/mo/day) | PFGE pattern | TDH titer | tdh gene | D value at pH4 (min) | D50C | % Survival at 4°C (day 6) | D value at 0.2% NaCl (min) | Antibiogram pattern |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 166 | O3:K29 | Taichung | Taiwan | 1992/10/05 | A5 | 512 | + | 6.96 | 3.20 | 10.99 | 100 | 9 |
| 272 | O3:K6 | Kaohsiung | Taiwan | 1993/01/04 | B2 | ND | ND | ND | ND | ND | ND | ND |
| 314 | O3:K29 | Miao-Li | Taiwan | 1993/06/14 | A6 | 2,048 | + | 4.23 | 4.94 | 12.01 | 92 | 27 |
| 556 | O3:K29 | Taipei | Taiwan | UN | C5 | 512 | + | 7.93 | 6.57 | 19.39 | 78 | 21 |
| 620 | O5:K15 | Kaohsiung | Taiwan | 1994/04/16 | B1 | 1,024 | + | 6.82 | 2.64 | 13.19 | 40 | 1 |
| 638 | O5:K15 | Kaohsiung | Taiwan | 1994/04/16 | B1 | 2,048 | + | 9.45 | 5.80 | 6.36 | 67 | 28 |
| 665 | O1:K56 | Chia-i | Taiwan | 1994/06/13 | C6 | 1,024 | + | 11.41 | 3.44 | 6.84 | 74 | 28 |
| 667 | O1:K56 | Chia-i | Taiwan | 1994/06/13 | C6 | 256 | + | 5.68 | 2.62 | 18.12 | 49 | 39 |
| 669 | O1:K56 | Chia-i | Taiwan | 1994/6/13 | B1 | 1,024 | + | 5.41 | 3.85 | 13.45 | 69 | 25 |
| 675 | O4:K8 | Taipei | Taiwan | 1994/6/30 | D3 | ND | + | ND | ND | ND | ND | ND |
| 676 | O4:K8 | Taipei | Taiwan | 1994/6/30 | D3 | 512 | + | ND | ND | ND | ND | ND |
| 680 | O4:K8 | P'eng-Hu | Taiwan | 1994/6/30 | D3 | 1,024 | + | 9.32 | 5.16 | 6.87 | 63 | 14 |
| 701 | O5:K15 | Kaohsiung | Taiwan | 1994/07/28 | Q | 256 | + | 5.15 | 2.43 | 12.21 | 183 | 2 |
| 736 | O4:K8 | P'ing-Tung | Taiwan | 1994/9/17 | D4 | 256 | + | 8.59 | 4.28 | 9.78 | 65 | 16 |
| 1020 | O3:K6 | Phillipines | Taiwan | 1997/05/05 | I5 | ND | + | 6.72 | 3.28 | 4.43 | 66 | 15 |
| 1021 | O3:K6 | Singapore | Taiwan | 1997/07/14 | I6 | ND | + | 4.91 | 5.37 | 11.29 | 68 | 36 |
| 1077 | O3:K6 | Miao-Li | Taiwan | 1997/04/25 | I5 | 256 | + | 7.13 | 3.01 | 17.14 | 78 | 3 |
| 1078 | O3:K6 | Miao-Li | Taiwan | 1997/04/25 | I1 | 256 | + | 6.40 | 2.63 | 15.02 | 71 | 38 |
| 1084 | O3:K6 | Changh | Taiwan | 1997/04/21 | I7 | 512 | + | 6.97 | 4.82 | 18.10 | 71 | 29 |
| 1091 | O3:K6 | Taichung | Taiwan | 1997/04/29 | I1 | 512 | + | 4.16 | 3.28 | 14.89 | 74 | 4 |
| 1092 | O3:K6 | Taichung | Taiwan | 1997/05/13 | I5 | 256 | + | 5.28 | 3.42 | 5.68 | 66 | 17 |
| 1114 | O3:K6 | Miao-Li | Taiwan | 1997/06/16 | ND | 0 | + | 7.01 | 3.81 | 7.42 | 64 | 8 |
| 1115 | O3:K6 | Miao-Li | Taiwan | 1997/06/16 | ND | 32 | + | 5.22 | 3.09 | 7.14 | 66 | 18 |
| 1121 | O3:K6 | Miao-Li | Taiwan | 1997/06/25 | I1 | 1,024 | ND | 7.12 | 2.79 | 16.10 | 129 | 37 |
| 1123 | O3:K6 | Miao-Li | Taiwan | 1997/06/28 | ND | 256 | + | 5.37 | 7.34 | 16.39 | 73 | 12 |
| 1126 | O3:K6 | Taichung | Taiwan | 1997/06/30 | ND | 128 | ND | ND | ND | ND | ND | ND |
| 1127 | O3:K6 | Taichung | Taiwan | 1997/06/30 | ND | 128 | ND | ND | ND | ND | ND | ND |
| 1129 | O3:K6 | Yun-Lin | Taiwan | 1997/07/16 | ND | 1,024 | + | 4.26 | 3.00 | 11.13 | 120 | 20 |
| 1130 | O3:K6 | Yun-Lin | Taiwan | 1997/07/16 | ND | 1,024 | + | 4.64 | 9.91 | 17.54 | 128 | 29 |
| 1132 | O3:K6 | Yun-Lin | Taiwan | 1997/07/22 | I1 | 512 | + | 4.69 | 3.65 | 7.55 | 70 | 19 |
| 1134 | O3:K6 | Taichung | Taiwan | 1997/08/17 | I1 | 512 | ND | ND | ND | ND | ND | ND |
| 1137 | O3:K6 | Yun-Lin | Taiwan | 1997/09/07 | I5 | 256 | + | 5.91 | 5.45 | 7.26 | 76 | 5 |
| 1139 | O3:K6 | Yun-Lin | Taiwan | 1997/09/07 | I4 | 256 | ND | ND | ND | ND | ND | ND |
| 1147 | O3:K6 | Changhua | Taiwan | 1997/10/05 | I1 | 512 | + | 11.09 | 3.40 | 11.42 | 74 | 17 |
| 1154 | O3:K6 | Taichung | Taiwan | 1997/11/11 | I2 | 256 | + | 7.33 | 3.77 | 5.90 | 83 | 11 |
| 1159 | O3:K6 | Changhua | Taiwan | 1997/11/21 | ND | 256 | + | 19.49 | 3.83 | 15.92 | 56 | 35 |
| 1188 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | 128 | + | 5.74 | 3.18 | 7.12 | 71 | 19 |
| 1189 | O3:K6 | Thailand | Taiwan | 1998 | I1 | ND | + | 13.65 | 5.89 | 11.11 | 67 | 30 |
| 1222 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 23 |
| 1223 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 33 |
| 1224 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 22 |
| 1225 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 24 |
| 1226 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 26 |
| 1227 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 33 |
| 1228 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 24 |
| 1229 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 34 |
| 1230 | O3:K6 | Hua-lien | Taiwan | 1998 | ND | ND | ND | ND | ND | ND | ND | 24 |
| VP47 | O3:K6 | Calcutta | India | 1996 | I1 | ND | ND | ND | ND | ND | ND | 31 |
| VP138 | O3:K6 | Calcutta | India | 1996 | I5 | ND | ND | ND | ND | ND | ND | 31 |
| KX-V224 | O3:K6 | Thailand | Japan | 1996 | I1 | ND | ND | ND | ND | ND | ND | 32 |
| KX-V225 | O3:K6 | Thailand | Japan | 1996 | I1 | ND | ND | ND | ND | ND | ND | 31 |
| KX-V226 | O3:K6 | Singapore | Japan | 1996 | I1 | ND | ND | ND | ND | ND | ND | 31 |
| KX-V231 | O3:K6 | Thailand | Japan | 1996 | I1 | ND | ND | ND | ND | ND | ND | 31 |
| AQ3732 | O3:K6 | UN | Japan | 1982 | A3 | ND | ND | ND | ND | ND | ND | ND |
| AQ3794 | O3:K6 | Singapore | Japan | 1983 | A3 | ND | ND | 9.84 | 3.36 | 16.52 | 65 | 3 |
| AQ3810 | O3:K6 | Singapore | Japan | 1983 | R | ND | ND | ND | ND | ND | ND | ND |
| AQ4019 | O3:K6 | Maldive Islands | Japan | 1985 | A3 | ND | ND | 6.29 | 2.77 | 8.28 | 66 | 20 |
| AQ4235 | O3:K6 | Thailand | Japan | 1987 | A1 | ND | ND | 6.54 | 3.12 | 6.08 | 73 | 27 |
| AQ4644 | O3:K6 | Thailand | Japan | 1991 | A3 | ND | ND | 5.56 | 2.40 | 16.16 | 98 | 32 |
| AQ4733 | O3:K6 | Singapore | Japan | 1992 | A2 | ND | ND | ND | ND | ND | ND | ND |
| AQ4853 | O3:K6 | Hong Kong | Japan | 1993 | A3 | ND | ND | 3.56 | 3.74 | 6.71 | 56 | 12 |
| AQ4901 | O3:K6 | Thailand | Japan | 1993 | A3 | ND | ND | 4.25 | 2.53 | 10.15 | 66 | 38 |
| KX-V138 | O3:K6 | Indonesia | Japan | 1995 | ND | ND | ND | 5.31 | 4.29 | 6.30 | 125 | 7 |
| 97-804 | O3:K6 | Jeju | Korea | 1997/07/19 | I3 | 128 | + | 6.12 | 2.91 | 4.72 | 69 | 13 |
| 97-1205 | O3:K6 | Kyung-Nam | Korea | 1997/09/08 | I1 | 256 | + | 5.45 | 2.85 | 9.79 | 144 | 20 |
| 97-1576 | O3:K6 | Gyung-Gi | Korea | 1997/08/27 | I8 | 1,024 | + | 4.72 | 3.62 | 10.97 | 69 | 6 |
| 97-1640 | O3:K6 | Kwang Won | Korea | 1997/10/10 | I1 | 2,048 | + | 8.69 | 2.42 | 10.69 | 44 | 10 |
| 98-39 | O3:K6 | Jun-Nam | Korea | 1998/07/10 | I1 | ND | + | ND | ND | ND | ND | ND |
a
For comparison with recently identified O3:K6 strains isolated after 1996, the O3:K6 strains and other frequently occurring serovars isolated before 1996 were selected and examined in this study. UN, unknown; ND, not determined; D50C, D value at 50°C. Toxin production and the presence of toxin genes in strains from India and Japan have been previously reported (19).