Table 1. Characteristics of outbreak cases by case status, British Columbia*, 2014.
| Characteristic | Confirmed cases N=325 |
Probable cases N=108 |
All cases N=433 |
|||
|---|---|---|---|---|---|---|
| n | % | n | % | n | % | |
| Case classification | ||||||
| PCR confirmed | 29 | - | - | - | 29 | 7 |
| IgM confirmed | 4 | - | - | - | 4 | 1 |
| Epi-linked confirmed | 292 | - | - | - | 292 | 67 |
| Probable | - | - | 108 | - | 108 | 25 |
| Age group (years) | ||||||
| <1 | 2 | 1 | 7 | 6 | 9 | 2 |
| 1 to 4 | 16 | 5 | 54 | 50 | 70 | 16 |
| 5 to 9 | 115 | 35 | 4 | 4 | 119 | 27 |
| 10 to 19 | 161 | 50 | 15 | 14 | 176 | 41 |
| 20 to 44 | 31 | 10 | 28 | 26 | 59 | 14 |
| Sex | ||||||
| Male | 166 | 51 | 56 | 52 | 222 | 51 |
| Female | 159 | 49 | 52 | 48 | 211 | 49 |
| Objects to vaccination | ||||||
| No | 16 | 5 | 3 | 3 | 19 | 4 |
| Yes | 266 | 82 | 90 | 83 | 356 | 82 |
| Unknown | 43 | 13 | 15 | 14 | 58 | 13 |
| Immunization history | ||||||
| 0 doses | 281 | 86 | 93 | 86 | 374 | 86 |
| 1 dose documented | 1 | 0 | 2 | 2 | 3 | 1 |
| 2 doses documented | 1 | 0 | 1 | 1 | 2 | 0 |
| Unknown | 42 | 13 | 12 | 11 | 54 | 12 |
*One resident of Washington State developed measles following exposure in Fraser East and was the source of infection for five additional cases reported in Washington State. These six cases are not included among the 433 described here.