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Table 2 Characteristics of localised epidemics in six sanitary districts, Burkina Faso, 2004-2008.

From: Definition and characterization of localised meningitis epidemics in Burkina Faso: a longitudinal retrospective study

Year District Number of HC with LEs Calendar week of epidemic declaration at the district level Calendar week when LE definition was met in the HC (median, range) Duration of individual LE, median (range) * Total population in HC with LE, (% of district population) Predominant agent if laboratory-confirmation during localised epidemic † Peak WIR in HC with LE, median (range)
2005         
  Orodara 2 no declaration 8 (7-9) 2.5 (2-3) 4,050 (2) - 318 (169-468)
2006         
  Dandé 2 11 13 (12-14) 2.5 (2-3) 6,850 (3) 28 NmA/31 (2) 261 (202-320)
  Houndé 8 9 11.5 (10-14) 3 (2-5) 55,180 (25) 30 NmA/30 (2) 191 (115-278)
  Secteur 15 10 5 10 (4-14) 5 (2-12) 97,770 (25) 30 NmA/31 (1) 343 (100-1860)
2007         
  Boulsa 2 8 10 (7-13) 6 (2-10) 25,390 (9) 8 NmA/3 Sp/15 (3) 190 (93-286)
  Dandé 1 12 14 3 (2-5) 14,290 (6) - 91
  Houndé 1 12 13 2 5,640 (2) 2 NmA/1 Sp/3 (1) 124
  Orodara 3 11 13 (12-14) 3 (2-6) 28,570 (10) 10 NmA/2 Sp/12 (1) 104 (94-582)
2008         
  Boulsa 2 10 10.5 (10-11) 5 (4-6) 13,830 (5) 11 NmA/5 Sp/16 (3) 276 (185-366)
  Orodara 1 8 8 6 2,490 (1) 4 NmA/4 (1) 561
  1. A localised epidemic (LE) was defined at the health centre level as 75 suspected meningitis cases reported per 100,000 inhabitants during at least two consecutive weeks, with a minimum of five cases within at least one week.
  2. WIR, weekly incidence rate
  3. HC, health centres
  4. LE, localised epidemic
  5. NmA, meningococcal serogroup A
  6. * In weeks, includes the week before definition was met
  7. † Number of epidemic agent over number of laboratory-confirmed bacterial meningitis cases
  8. (1) AMP Mobile laboratory [25]
  9. (2) Laboratory surveillance by PCR at Centre Muraz, Bobo-Dioulasso [23]
  10. (3) District level data as reported by Ministry of Health, Epidemiological surveillance department. Burkina Faso