Table 1.
Description of World Health Organization African Region Countries Included in the Analysis of the Invasive Bacterial Vaccine-preventable Diseases Surveillance System
| Country | Subregion | No. of Surveillance Sites | No. of Surveillance Sites Within the Meningitis Belt [4] | Annual Birth Cohorta | Years of Available Data | Year of Hib Introduction | Year of First MACV National Prevention Campaign | Year of PCV Introduction (Formulation) | No. of Suspected Meningitis Cases Reported | No. of CSF Specimens Testedb |
|---|---|---|---|---|---|---|---|---|---|---|
| Ethiopia | SE | 3 | 3 | 3 256 400 | 2011–2016 | 2007 | 2013 | 2011 (PCV10) | 3810 | 3808 |
| Lesotho | SE | 2 | 0 | 61 400 | 2011–2016 | 2008 | … | 2015 (PCV13) | 468 | 303 |
| Madagascar | SE | 1 | 0 | 825 100 | 2011–2016 | 2008 | … | 2012 (PCV10) | 2907 | 2599 |
| Malawic | SE | 1 | 0 | 664 000 | 2011–2012 | 2002 | … | 2011 (PCV13) | 106 | 102 |
| Mozambique | SE | 3 | 0 | 1 123 000 | 2011, 2013–2016 | 2009 | … | 2013 (PCV10) | 816 | 749 |
| Rwanda | SE | 2 | 0 | 370 700 | 2011–2016 | 2002 | … | 2009 (PCV13) | 308 | 280 |
| Kingdom of Eswatini (formerly Swaziland) | SE | 2 | 0 | 38 700 | 2011–2016 | 2009 | … | 2014 (PCV13) | 432 | 257 |
| Uganda | SE | 3 | 0 | 1 748 500 | 2011–2016 | 2002 | … | 2013 (PCV10) | 3920 | 3700 |
| United Republic of Tanzania | SE | 3 | 0 | 2 122 000 | 2011–2016 | 2009 | … | 2012 (PCV13) | 590 | 515 |
| Zambia | SE | 1 | 0 | 632 600 | 2011–2016 | 2004 | … | 2013 (PCV10) | 2082 | 1427 |
| Zimbabwe | SE | 1 | 0 | 535 300 | 2011–2016 | 2008 | … | 2012 (PCV13) | 2820 | 2788 |
| Angolac | WC | 1 | 0 | 1 204 400 | 2012–2016 | 2006 | … | 2013 (PCV13) | 1574 | 1297 |
| Benin | WC | 3 | 3 | 402 600 | 2011–2016 | 2005 | 2012 | 2011 (PCV13) | 8437 | 2751 |
| Burkina Fasoc | WC | 1 | 1 | 725 700 | 2011–2016 | 2006 | 2010 | 2013 (PCV13) | 1379 | 1374 |
| Burundic | WC | 1 | 0 | 444 600 | 2011–2016 | 2004 | … | 2011 (PCV13) | 323 | 35 |
| Cameroon | WC | 1 | 0 | 850 800 | 2011–2016 | 2009 | 2011 | 2011 (PCV13) | 4263 | 559 |
| CARc | WC | 1 | 0 | 164 000 | 2011–2014, 2016 | 2008 | … | 2011 (PCV13) | 935 | 711 |
| Cote d’Ivoire | WC | 2 | 1 | 872 800 | 2011, 2013–2016 | 2009 | 2014 | 2014 (PCV13) | 1931 | 1928 |
| DRC | WC | 3 | 0 | 3 328 900 | 2011–2016 | 2009 | … | 2012 (PCV13) | 1373 | 1109 |
| Gambiad | WC | 1 | 1 | 80 500 | 2011–2016 | 1997 | 2013 | 2011c (PCV13) | 287 | 255 |
| Ghana | WC | 2 | 0 | 875 700 | 2011–2016 | 2002 | 2012 | 2012 (PCV13) | 2464 | 2444 |
| Niger | WC | 5 | 5 | 995 100 | 2011–2016 | 2008 | 2010 | 2014 (PCV13) | 1844 | 1363 |
| Nigeria | WC | 5 | 1 | 7 232 600 | 2011–2016 | 2012 | 2011 | 2014 (PCV10) | 3259 | 3068 |
| Senegal | WC | 1 | 1 | 548 600 | 2011–2016 | 2005 | 2012 | 2013 (PCV13) | 639 | 637 |
| Sierra Leone | WC | 1 | 0 | 258 800 | 2011–2014, 2016 | 2007 | … | 2011 (PCV13) | 259 | 216 |
| Togo | WC | 1 | 0 | 258 800 | 2011–2016 | 2008 | 2014 | 2014 (PCV13) | 2618 | 2550 |
| Total | … | 51 | 14 | … | … | … | … | … | 49 844 | 36 825 |
Abbreviations: CAR, Central African Republic; CSF, cerebrospinal fluid; DRC, Democratic Republic of Congo; Hib, conjugate Haemophilus influenzae type B vaccine; MACV, meningococcal serogroup A conjugate vaccine; PCV, pneumococcal conjugate vaccine; PCV10, 10-valent pneumococcal conjugate vaccine; PCV13, 13-valent pneumococcal conjugate vaccine; SE, South-East; WC, West-Central.
aWorld Bank population statistics by country, 2016 (https://data.worldbank.org/indicator/sp.dyn.cbrt.in), Estimates rounded to nearest 100.
bSpecimens tested by at least 1 laboratory method (polymerase chain reaction [PCR], culture, latex agglutination, immunochromatographic test).
cThese countries do not send samples to the regional reference laboratories for confirmatory testing by PCR and serotyping.
dThe Gambia introduced 7-valent PCV in 2009.