Table 1. Aggregate and case-based meningitis surveillance data indicators, Burkina Faso, 2011–2015.
| 2011 | 2012 | 2013 | 2014 | 2015 | Total | |
|---|---|---|---|---|---|---|
| N (%) | ||||||
| Aggregate meningitis surveillance | ||||||
| Suspected meningitis cases | 3,878 | 7,022 | 2,919 | 3,486 | 3,084 | 20,389 |
| District-level epidemics* | 0 | 7 | 0 | 0 | 0 | 7 |
| Deaths | 588 (15) | 739 (11) | 339 (12) | 357 (10) | 310 (10) | 2,333 (11) |
| Case-based meningitis surveillance | ||||||
| Districts reporting | 57/63 (90) | 63/63 (100) | 63/63 (100) | 63/63 (100) | 63/63 (100) | 63/63 (100) |
| Suspected case-based meningitis cases | 2,841 | 6,499 | 2,829 | 3,399 | 2,970 | 18,538 |
| Cases with CSF specimen† | 2,767 (97) | 6,302 (97) | 2,758 (97) | 3,331 (98) | 2,912 (98) | 18,069 (97) |
| CSFs with a Gram stain | 2,508 (91) | 5,626 (89) | 2,460 (89) | 2,949 (89) | 2,686 (92) | 16,229 (90) |
| CSFs tested by latex, culture or rt-PCR | 1,718 (62) | 2,894 (46) | 2,011 (73) | 2,312 (69) | 2,229 (77) | 11,013 (64) |
| CSFs tested by latex | 1,146 (41) | 1,205 (19) | 513 (19) | 716 (22) | 308 (11) | 3,888 (22) |
| CSFs tested by culture | 722 (26) | 1,552 (25) | 637 (23) | 563 (17) | 420 (14) | 3,894 (22) |
| CSFs cultured but found to be contaminated | 190 (26) | 275 (18) | 107 (17) | 123 (22) | 98 (23) | 793 (20) |
| CSFs tested by rt-PCR | 1,133 (41) | 1,396 (22) | 1,704 (62) | 1,958 (59) | 2,115 (73) | 8,306 (46) |
| CSFs confirmed for Hi/Nm/Sp | 860 (31) | 1,293 (21) | 705 (26) | 762 (23) | 883 (30) | 4,503 (25) |
Abbreviations: CSF, cerebrospinal fluid; Hi, Haemophilus influenzae; Nm, Neisseria meningitidis; rt-PCR, real-time polymerase chain reaction; Sp, Streptococcus pneumoniae.
*A district-level epidemic was defined as an aggregate suspected meningitis incidence rate exceeding 100 per 100,000 population per week.
†The number of cases with a CSF specimen collected serves as the denominator for all below categories.