Table 2. Measles cases by source of infection in 2013 outbreaks.
| Total no. | Source of infection | Genotype (n, %) |
||
|---|---|---|---|---|
| I | IR | |||
| Total no. (%) | 107 | 4 (3.7) | 103 (96.3) | - |
| Sporadic case | 2 | 2† | 0 | - |
| Outbreak cases | ||||
| Gyeongnam | 74 | 0 | 74 | B3 (53, 71.6) |
| Northern Gyeonggi | 25 | 0 | 25 | B3 (17, 68.0) |
| Southern Gyeonggi | 4 | 1 | 3 | B3 (4, 100.0) |
| Seoul | 2 | 1 | 1 | D9 (2, 100.0) |
Abbreviations: I, imported; IR, import-related.
† These sporadic cases were identified as imported from Thailand, based on epidemiological evidence. Patients were located outside of Korea during the incubation period; genotyping failed owing to delayed medical notification, which prevented timely acquisition of specimens for sequencing.