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Deworming

TagLast edit: Apr 1, 2023, 9:47 PM by Pablo

Deworming is the administration of anthelmintic drugs to treat humans afflicted with parasitic worms.

Parasitic worms (also known as helminths) can cause various health conditions and symptoms of varying severity. The most common parasitic worm infection, ascariasis, is estimated to affect 800 million to 1.1 billion people.[1] Experts disagree about whether the health effects of parasitic worms are relatively minor or quite severe.[2][3]

Parasitic worm infections can be treated through mass drug administration.[4] This method of deworming has low costs and a high level of success in reducing worm loads (though reinfection can be rapid). There is also evidence that reducing worm loads among children substantially increases future earnings,[5] though some have challenged these findings.[6][7]

Due to the low cost and the probability that it will increase future earnings, GiveWell regards mass drug administration as a priority program[8] and rates donating to deworming charities as having high expected value.[9] Two of GiveWell’s top recommended charities, Deworm the World Initiative and SCI Foundation, focus on deworming through mass drug administration.

Further reading

GiveWell (2013) Combination deworming (mass drug administration targeting both schistosomiasis and soil-transmitted helminths), GiveWell, December (updated January 2018).

Related entries

global health and development

  1. ^

    Centers for Disease Control and Prevention (2013) Parasites—Soil-transmitted helminths, Centers for Disease Control and Prevention (updated 27 October 2020).

  2. ^

    Taylor-Robinson, David C. et al. (2019) Public health deworming programmes for soil-transmitted helminths in children living in endemic areas, Cochrane Database of Systematic Reviews, issue 9, art. no. CD000371.

  3. ^

    Croke, Kevin et al. (2016) Does mass deworming affect child nutrition? Meta-analysis, cost-effectiveness, and statistical power, Working Paper No. 22382, National Bureau of Economic Research.

  4. ^
  5. ^

    Hicks, Joan Hamory, Michael Kremer & Edward Miguel (2015) The case for mass treatment of intestinal helminths in endemic areas, PLoS Neglected Tropical Diseases.

  6. ^

    Humphreys, Macartan (2015) What has been learned from the deworming replications: A nonpartisan view, Columbia University, August 18.

  7. ^

    Jullien, Sophie, David Sinclair & Paul Garner (2016) The impact of mass deworming programmes on schooling and economic development: An appraisal of long-term studies, International Journal of Epidemiology, vol. 45, pp. 2140–2153.

  8. ^

    GiveWell (2009) Research on programs, GiveWell (updated April 2021).

  9. ^

    Conley, Sean (2016) Deworming might have huge impact, but might have close to zero impact, The GiveWell Blog, July 26.

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