Today, Evidence Action welcomes the release of a new study that shows that mass deworming of children has a significant positive effect on child weight and is highly cost effective, with a weight gain per dollar 35 times greater than school feeding programs.
This study strongly refutes findings from a previous critique of mass deworming of children in developing countries with high levels of parasitic worms, a Cochrane meta analysis by Taylor-Robinson et al (2015.) that questioned the long-standing World Health Organization (WHO) policy supporting mass deworming.
The new research, “Does Mass Deworming Affect Child Nutrition?: Meta-analysis, Cost-Effectiveness, and Statistical Power” was authored by Kevin Croke, Joan Hamory Hicks, Eric Hsu, Michael Kremer, and Edward Miguel.