© 1993 Oxford University Press
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An Outbreak of Pellagra Related to Changes in Dietary Niacin among Mozambican Refugees in Malawi


* Epicentre, 8 rue Saint Sabin, Paris 75011, France
** Médecins Sans Frontiéres, Paris, France
Institut National d'Agronomie Paris, Girgnon, France
Office of the United Nations High Commissioner for Refugees Blantyre, Malawi
§ Office of the United Nations High Commissioner for Refugees Geneva
Reprint requests: Dr Alain Moren
Between February and October 1990, 18276 cases of pellagra dermatitis (due to niacin deficiency) were reported among 285942 Mozambican refugees in Malawi. Overall, 6.3% of the refugee population developed pellagra and the attack rate was 7.8 times higher among women than men. This outbreak followed a 5-month cessation of groundnut distribution (the major source of niacin) to refugees. A matched-pair case-control study confirmed the protective role of the daily consumption of groundnuts (Odds Ratio [OR]=0.08), as well as the independent role of garden ownership (OR=0.34), and home maize milling (OR=0.3). Recommended corrective action included early case finding and treatment, distribution of niacin tablets, prompt identification of groundnut supply on the world market, fortification with niacin of the food ration and diversification of the food basket through access to local markets.
Received 1 November 1992
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