Volume 22, Number 5—May 2016
Dispatch
Increased Rotavirus Prevalence in Diarrheal Outbreak Precipitated by Localized Flooding, Solomon Islands, 2014
Table 1
Comparison of diarrhea case counts before, during, and after outbreak linked to localized flooding, Solomon Islands, 2013–2015*
|
Facility†
|
Facility type
|
Location‡
|
No. cases (mean weekly cases)
|
Rate ratio (95% CI)
|
||
|
2013§
|
2014¶
|
2015#
|
||||
| National Referral Hospital | Hospital | Honiara | 470 (36.2) | 1969 (140.6) | 347 (24.8) | 4.65 (3.24–6.75) |
| Kukum | Clinic | Honiara | 290 (20.7) | 675 (48.2) | 256 (18.3) | 2.47 (1.67–3.70) |
| Rove | Clinic | Honiara | 288 (20.6) | 487 (34.8) | 264 (18.9) | 1.76 (1.18–2.66) |
| Good Samaritan Hospital | Hospital | Guadalcanal | NA | 812 (116.0) | 253 (18.1) | 6.41 (4.43–9.42) |
| Kilu’ufi | Hospital | Malaita | 248 (17.7) | 627 (44.8) | 112 (8.6) | 3.36 (2.17–5.29) |
| Taro | Hospital | Choiseul | 4 (0.3) | 48 (3.4) | 31 (2.2) | 2.74 (1.18–6.71) |
|
Gizo
|
Hospital
|
Western
|
72 (5.1)
|
427 (30.5)
|
140 (10.8)
|
3.88 (2.37–6.52)
|
*Source: Pacific Syndromic Surveillance System (PSSS) database. The rate ratio was calculated by comparing rates during the outbreak in 2014 and rates during years without outbreaks (2013 and 2015) and using a negative binomial regression. NA, not available.
†One PSSS site in Honiara, Mataniko Clinic, is not shown because the clinic was partially destroyed by the flood and was not operational during the peak of the outbreak.
‡The city of Honiara is the capital of the Solomon Islands and is located in Guadalcanal Province; the remaining locations are provinces of the Solomon Islands.
§April 8–July 14, 2013 (14 weeks).
¶April 7–July 13, 2014 (14 weeks).
#April 6–July 12, 2015 (14 weeks).