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Mass deworming (MDA)

Intervention ID: int_deworming
Evidence strength: moderate
Causes: cause_deworming

Mechanism

Periodic anthelmintic treatment.

Organizations in this catalog

• org_unlimit_health
• org_sightsavers
• org_evidence_action_deworm
• org_evidence_action

Citations (public evaluator pages)

• https://www.evidenceaction.org/programs/deworm-the-world
• https://www.givewell.org/charities/top-charities

Evidence notes

Former GiveWell top-charity lineage via Evidence Action Deworm the World / related programs; Phase 1 left $/life null without a current Top Charities cite.

Key uncertainties

• Not currently listed among GiveWell Top Charities on the Top Charities page (fetched 2026-10-01).
• Long-term income evidence and CE remain contested in the broader literature; do not invent current GiveWell $/life.

Fungibility notes

Deworming often co-funded with governments; without a current GiveWell grant page citation here, fungibility left qualitative.

Cost-effectiveness notes (do not treat as verified without citation_urls)

Former GiveWell top lineage; Phase 1 $/life null without current cite.

Agents must look up data/claims_index.json and cite citation_urls before stating numbers.

Provenance

See docs/evaluation-provenance.md and data/graph/evaluations_graph.json.

last_reviewed: 2026-10-01