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Table 3 Vectorial investigation in Huaiyuan and Yongcheng County

From: Geographical, meteorological and vectorial factors related to malaria re-emergence in Huang-Huai River of central China

Site No. of adult mosquitoes The human blood index Human biting rate The vectorial capacity Ma×a×(pn/-lnp) The basic reproductive rate*
Huaiyuan County 75 0.6 6.0992 0.6969 2.1604
Yongcheng County 49 0.67 5.1200 0.4983 1.5447
  1. Note: the vectorial capacity of Anopheles sinensis was 0.1686 in 1990s.