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Table 3 Incidence rates of meningitis based on case definition (per 100,000 populations)

From: Epidemiological profile of meningitis in Iran before pentavalent vaccine introduction

Year Average population Total cases of meningitis Confirmed cases of meningitis Probable cases of meningitis
Frequency Incidence rate Frequency Incidence rate Frequency Incidence rate
2008 72,266,000 1642 2.27 209 0.28 1433 1.98
2009 73,196,000 1782 2.43 231 0.31 1551 2.11
2010 74,157,000 1587 2.14 257 0.34 1330 1.79
2011 75,150,000 1819 2.42 234 0.31 1585 2.10
2012 76,038,000 1954 2.56 250 0.32 1704 2.24
2013 76,942,000 2100 2.72 216 0.28 1884 2.44
2014 77,856,000 437 0.56 71 0.09 366 0.47