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Table 3 Estimated imported polio infections to Saudi Arabia during the Hajj pilgrimage from polio-infected countries in 2013 and 2014

From: Potential for international spread of wild poliovirus via travelers

Country Hajj pilgrimsa (2012) Vaccination coverage (2013) b Population size (2013) c Symptomatic cases (2013)d Symptomatic cases (2014) d Asymptomatic infections (2013) Asymptomatic infections (2014) Imported polio infections (2013) Imported polio infections (2014)
Pakistan 172,610 0.72 182,142,594 93 306 18,600 61,200 6 19
Afghanistan 33,011 0.71 30,551,674 14 28 2,800 5,600 1 2
Nigeria 98,559 0.67 173,615,345 53 6 10,600 1,200 2 0
Somalia 6,540 0.47 10,495,583 194 5 38,800 1,000 8 0
Syria 30,921 0.52 22,850,000 35 1 7,000 200 3 0
Ethiopia 4,009 0.7 94,100,756 9 1 1,800 200 0 0
Kenya 2,480 0.82 44,353,691 14 0 2,800 NC 0 NC
Cameroon 3,570 0.88 21,699,631 4 5 800 1,000 0 0
Equatorial Guinea NA 0.30 757,014 0 5 NC 1,000 NC NC
Iraq 35,748 0.70 33,417,476 0 2 NC 400 NC 0
Total 384,968   613,983,764 416 359 83,200 71,800 20 21
  1. a [18]
  2. b [27]
  3. c [28]
  4. d [15]
  5. NA = not available
  6. NC = not calculated