Biology Reference
In-Depth Information
FIGURE 13.1
(A) Global limits of Ascaris lumbricoides transmission. Areas are defined as
stable, less stable or no risk, on the basis of temperature and aridity. Adapted from ref.
19
(B) The prevalence of A. lumbricoides infection, based on available empirical information.
(C) The proportion of the global population infected (0.762 billion) by country (unpublished
estimates).