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Table 4 Amplification and sequencing results

From: Evaluation of dihydrofolate reductase and dihydropteroate synthetase genotypes that confer resistance to sulphadoxine-pyrimethamine in Plasmodium falciparum in Haiti

Study Site Total samples # Positive amplifications # Sequenced
 ssu rRNA   dhfr   dhps   dhfr   dhps   Both dhfr and dhps 
Terre Noire † 232 39 (SS1 =13, SS2 =26) 33 (SS1 =12, SS2 =21) 31 (SS1 = 10, SS2 = 21) 30 (SS1 = 12, SS2 = 18) 23 (SS1 = 10, SS2 = 13) 21 (SS1 = 10, SS2 = 11)
Leogane 31 24 14 18 13 13 10
Hinche 10 6 5 8 5 8 4
Cap Haitien 10 1 4 8 4 7 4
Jacmel 11 6 9 8 9 7 7
Total* 294 76 65 73 61 58 46
  1. †Includes the number of samples for samples set (SS) in parentheses; SS1 = Sample Set 1 and SS2 = Sample Set 2.
  2. *Total does not include Artibonite samples. None of the Artibonite samples contained positive amplifications for ssu rRNA, dhfr, or dhps.