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An Analysis of some Factors Determining the Sporozoite Rates, Human Blood Indexes, and Biting Rates of Members of the Anopheles punctulatus Complex in Papua New Guinea
The degree to which Anopheles punctulatus complex members feed on humans in different Papua New Guinea villages has a significant effect on sporozoite rates. Among villages, the human blood index (HBI) of the members of the complex varied with the average number of persons sharing a bednet. Although dogs are the preferred hosts by the 3 malaria vector species, the number of dogs did not significantly affect the HBI. The HBI was dependent upon the human-biting rate, implying increased avoidance of anophelines by people relative to other hosts at times of greater mosquito numbers. Human-biting rates and HBIs were also influenced by the distribution of alternative hosts relative to people.