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Table 3 Malaria-positive smears in 12 study sites in Mauritania

From: Malaria in three epidemiological strata in Mauritania

Zone/study sites Subjects (n) Plasmodium species (n, %) All Plasmodium spp. (n, %)
P. falciparum P. vivax P. ovale P. malariae
Sahelian 1056 8 (0.76) 5 (0.47) 1 (0.09) 14 (1.33)
  2011 350 3 (0.86) 3 (0.86) 6 (1.71)
  2012 369
  2013 337 5 (1.48) 2 (0.59) 1 (0.30) 8 (2.37)
 Keurmassen
  2011 50 1 (2.00) 1 (2.00)
  2012 50
  2013 117 1 (0.85) 1 (0.85)
 Boghé
  2011 101 1 (0.99) 1 (0.99)
  2012 101  
  2013 114 1 (0.88) 1 (0.88) 2 (1.75)
 Gouraye       
   2011 99 1 (1.01) 2 (2.02) 3 (3.03)
   2012 99  
   2013 74 1 (1.35) 1 (1.35) 2 (2.70)
 Ghabou
  2011 100 1 (1.00) 1 (1.00)
  2012 119
  2013 32 2 (6.25) 1 (3.12) 3 (9.38)
Sahelo-Saharan 1330 62 (4.66) 16 (1.20) a 5 (0.38) 83 (6.24)*
  2011 407 18 (4.42) 12 (2.95) 3 (0.74) 33 (8.11)
  2012 451   
  2013 472 44 (9.32) 4 (0.85) 2 (0.42) 50 (10.59)
 Kobeni
  2011 105 3 (2.86) 4 (3.81) 2 (1.90) 9 (8.57)
  2012 111  
  2013 129 18 (13.95) 1 (0.78) 19 (14.73)
 Tamcheket      
  2011 102 2 (1.96) 6 (5.88) 1 (0.98) 9 (8.82)
  2012 105  
  2013 105 5 (4.76) 4 (3.81)a 9 (8.57)
 Kankossa
  2011 104 8 (7.69) 2 (1.92) 10 (9.62)
  2012 109
  2013 124 12 (9.68) 1 (0.81) 13 (10.48)
 Nbeika
  2011 96 5 (5.21) 5 (5.21)
  2012 126
  2013 114 9 (7.89) 9 (7.89)
Saharan 1059 1 (0.09) 43 (4.06) 2 (0.19) 46 (4.34)*
  2011 424 1 (0.24) 26 (6.13)   29 (6.84)
  2012 348 3 (0.86) 2 (0.47) 3 (0.86)
  2013 287 14 (4.88) 14 (4.88)
 Teyarettb
  2011 109 1 (0.92) 15 (13.76) 2 (1.83) 18 (16.51)
  2012 116 3 (2.59)   3 (2.59)
  2013 109 8 (7.34) 8 (7.34)
 Darnaimb
  2011 119 9 (7.56) 9 (7.56)
  2012 125
  2013 119 5 (4.20) 5 (4.20)
 Aoujeft
  2011 146 2 (1.37) 2 (1.37)
  2012 107
  2013 59 1 (1.69) 1 (1.69)
 Akjoujt
  2011 50
  2012 ND      
  2013 ND      
  1. Overall data obtained in each zone, followed by data from each study site, are presented. The total numbers of malaria-positive individuals in each zone are in italics. Dash denotes n = 0. ND, not done. Asterisks (*) denote statistically significant difference (P < 0.05) in the proportions of malaria-positive smears between sahelian zone and both the sahelo-Saharan and Saharan zones. Malaria positivity rate between sahelo-Saharan and Saharan zones did not differ significantly (P = 0.052). The difference in malaria positivity rate was statistically significant (P < 0.05) between the ‘hot’ dry season 2012 (3 of 1168; 0.26 %) and ‘cool’ dry season 2011 (68 of 1181; 5.76 %) or rainy season in 2013 (72 of 1096; 6.57 %), but not between 2011 and 2013 (P = 0.473)
  2. aIncluding two children with mixed P. falciparum-P. vivax infections
  3. bTeyarett and Darnaim are districts in Nouakchott, the capital city of Mauritania