TABLE 2.
Plasmid profiles and restriction patterns of the plasmids from MDR Salmonella serovar Typhi strains isolated from patients with typhoid fever (sporadic cases and outbreaks)
| Isolation date | Size(s) of plasmid(s) (MDa) | RFLP patterna | Sporadic case (S) or outbreak (O) | Location of patient with typhoid fever (no. of occurrences) | Total no. of occurrences |
|---|---|---|---|---|---|
| 1992-1994 | 110 | 1 | S | Long An (1), Tien Giang (1) | 2 |
| 1992-1994 | 110, 80 | 1 | S | An Giang (1), Dong Thap (1), Tien Giang (3), Vinh Long (1) | 6 |
| 1992-1994 | 110, 85 | 1 | S | Ho Chi Minh City district 5 (1) | 1 |
| 1992-1994 | 110 | 2 | S | Ho Chi Minh City district 6 (2) | 2 |
| 1992-1994 | 110 | 3 | S | Long An (1) | 1 |
| 1992-1994 | 110, 60, 40, 4 | 4 | S | Dong Thap (1) | 1 |
| 1992-1994 | 110, 80 | 5 | S | An Giang (1) | 1 |
| 1992-1994 | 110 | 6 | S | Ho Chi Minh City district 4 (1), Tien Giang (1) | 2 |
| 1992-1994 | 110 | 7 | S | Ho Chi Minh City district 6 (1) | 1 |
| 1996 | 110 | 7 | S | Dong Nai (1), Dong Thap (1), Tien Giang (1), Vinh Long district (1), Ho Chi Minh City districts 1 (1), 4 (1), and 8 (3) | 9 |
| 1996 | 110, 40 | 7 | S | Tien Giang (1), Liong An (2) | 3 |
| 1996 | 110, 80 | 7 | S | Tien Gang (1), Ho Chi Minh City districts 5 (1), 6 (2), and 8 (3) | 7 |
| 1996 | 110, 85 | 7 | S | Cai Be (1), Ho Chi Minh City district 4 (2), Noi Be (1) | 4 |
| 1996 | 110 | NT | S | Ho Chi Minh City district 8 (1) | 1 |
| 1992-1994 | 110 | NT | S | Tien Giang (1) | 1 |
| 1992-1994 | 110, 80 | NT | S | Ho Chi Minh City district 6 (1) | 1 |
| 1992-1994 | 110, 85 | NT | S | Thuan Hai (1) | 1 |
| 1992-1994 | 110, 60, 40, 3 | NT | S | Dong Thap (1) | 1 |
| 1992-1994 | 110, 70, 30, 10, 3 | NT | S | Long An (1) | 1 |
| 1992-1994 | 110, 70, 40, 3 | NT | S | Ho Chi Minh City district 10 (1), Binh Chanh (1) | 2 |
| 1993 | 110, 80 | 1 | O | Kien Giang (3) | 3 |
| 1994 | 110 | 7 | O | Cai Be (2), Thu Thiem (3) | 5 |
| 1996-1997 | 110 | 7 | O | Ho Chi Minh City district 6 (1) | 1 |
| 1994 | 110, 80 | 7 | O | Cai Be (1) | 1 |
| 1996-1997 | 110, 80 | 7 | O | Ho Chi Minh City district 6 (2) | 2 |