Table 5. Temporal trends of the efficacy of mefloquine monotherapy and parasite genotype in primary infections.
| 1990 | 1991 | 1992 | 1993 | 1994* | |
|---|---|---|---|---|---|
| Day 28 failure rate (complete cohort) | 3/63 (5%) | 41/314 (13%) | 56/231 (24%) | 65/180 (36%) | 27/73 (37%) |
| Day 7 failure rate (complete cohort) | 0/79 (0%) | 12/363 (3%) | 19/273 (7%) | 30/194 (16%) | 10/77 (13%) |
| Isolates with 1 copy of pfmdr1 | 32/42 (76%) | 17/60 (72%) | 28/51 (55%) | 4/11 (36%) | NA |
| Isolates with 2 copies of pfmdr1 | 6/42 (14%) | 8/60 (13%) | 14/51 (28%) | 5/11 (45%) | NA |
| Isolates with ≥3 copies of pfmdr1 | 4/42 (10%) | 9/60 (15%) | 9/51 (18%) | 2/11 (18%) | NA |
| N86Y | 3/38 (8%) | 4/60 (7%) | 1/48 (2%) | 0/11 (0%) | NA |
| S1034C | 2/39 (5%) | 2/60 (3%) | 1/47 (2%) | 0/11 (0%) | NA |
| N1042D | 7/39 (18%) | 23/39 (39%) | 7/47 (15%) | 2/11 (18%) | NA |
NA=not available.
Until July 1994.