Excerpt from introduction: Our earlier study sought to assess the quantitative impact of parasitic diseases on various measures of labor productivity.' The current study extends the previous analyses by examining the hypothesis that productivity is affected with a time lag that reflects the...

This study sought to measure the impacts of five parasitic diseases on (1) mortality and natality, (2) school attendance and academic performance of children, (3) labor productivity on a rural plantation, and in an urban light‐manufacturing plant — all in St. Lucia, West Indies.