Table 2.
Characteristics of measles cases within and outside each space-time cluster identified during the 2010 measles outbreak in Lusaka
| Variable | Time Period 1: April 6-May 5 | Time period 2: Aug 4- Sept 2 | Time period 3: Oct 3-Nov 1 | Total | |||
|---|---|---|---|---|---|---|---|
| Cluster 1 | Outside cluster 1 | Cluster 2 | Outside cluster 2 | Cluster 3 | Outside cluster 3 | All cases 2010 | |
| Number of Cases | 62 | 36 | 58 | 54 | 17 | 49 | 1,134 |
| % Male | 42% | 44% | 40% | 54% | 53% | 49% | 52% |
| Age in months (median, IQR) | 13 (7,32) | 24 (12,55) | 9 (6, 57) | 9 (6, 33) | 12 (7,64) | 13 (7,43) | 12 (7,29) |
| HIV infection status | |||||||
| Infected | 2 (3%) | 0 (0%) | 1 (2%) | 6 (11%) | 3 (18%) | 3 (6%) | 41 (4%) |
| Exposed | 4 (7%) | 3 (8%) | 10 (18%) | 6 (11%) | 2 (12%) | 5 (10%) | 100 (9%) |
| Not infected | 51 (84%) | 33 (92%) | 39 (70%) | 38 (72%) | 11 (65%) | 33 (67%) | 905 (80%) |
| Unknown | 4 (7%) | 0 (0%) | 6 (11%) | 3 (6%) | 1 (6%) | 8 (16%) | 80 (7%) |
| Measles vaccination status | |||||||
| Vaccinated | 16 (26%) | 8 (22%) | 10 (18%) | 8 (15%) | 2 (12%) | 8 (16%) | 221 (20%) |
| Not Vaccinated | 36 (58%) | 21 (58%) | 31 (54%) | 31 (59%) | 8 (47%) | 25 (51%) | 618 (55%) |
| Unknown | 10 (16%) | 7 (19%) | 16 (28%) | 14 (26%) | 7 (41%) | 16 (33%) | 286 (25%) |