TABLE 3.
Genetic sequencing results for PV strains, by type, Córdoba Province, Argentina, May 2005 to April 2006
| PV type | No. of strains with mutations (%) | Among strains with mutation
|
No. of isolates with intertype recombination (%)a
|
|||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. of strains with ≥5 mutations (%) | Median % divergence from Sabin strain (range) | Total | S1/S2 | S1/S3 | S2/S1 | S2/S3 | S3/S1 | S3/S2 | ||
| Total (n = 252) | 194 (77) | 6 (3) | 0.22 (0.11, 0.77) | 50 (20) | 2 | 1 | 3 | 4 | 10 | 30 |
| PV1 (n = 40) | 29 (73) | 3 (10) | 0.22 (0.11, 0.77) | 2 (5) | 2 (100) | 0 | 0 | 0 | ||
| PV2 (n = 106) | 80 (80) | 0 (0) | 0.22 (0.11, 0.44) | 7 (7) | 0 | 3 (43) | 4 (57) | 0 | ||
| PV3 (n = 106) | 85 (76) | 3 (4) | 0.22 (0.11, 0.77) | 41 (39) | 1 (2) | 0 | 10 (24) | 30 (73) | ||
a
P value (by chi-square test) between the three types of <0.001.