vectorial capacity 2009-06-30T12:02:22Z IDOMAL:0001294 IDOMAL:0001294 In vector-borne infections such as malaria, the vectorial capacity is a concept analogous to the contact rate in directly-transmitted diseases. It is, thus, a function of (a) the vector's density in relation to its vertebrate host, (b) the frequency with which it takes blood meals on the host species, (c) the duration of the latent period in the vector, and (d) the vector's life expectancy. idomal_namespace louis true