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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Regional differences in the response of Plasmodium vivax malaria to primaquine as anti-relapse therapy
American Journal of Tropical Medicine and Hygiene, Volume 76, No. 2, Year 2007
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Description
We used logistic regression to assess effectiveness of primaquine as Plasmodium vivax anti-relapse therapy using data extracted from studies of P. vivax relapses in Brazil, India, and Thailand. The risk of relapse in Thailand was 10 times that in India and twice that in Brazil. In comparison with no primaquine treatment, the risk of relapse decreased by approximately 80% for a total adult primaquine regimen of 210 mg and by ≥95% for regimens of 315 mg and 420 mg. In addition, we used logistic regression to estimate the risk of P. vivax relapse according to weight-based primaquine dose using data from case studies. There was a three-fold increase in the likelihood of successful treatment of each additional milligram of primaquine per kilogram of body weight. Tailoring primaquine therapy to a region requires consideration of factors including body weight, natural relapse rates, and local response to primaquine. Copyright © 2007 by The American Society of Tropical Medicine and Hygiene.
Authors & Co-Authors
Ringwald, Pascal
Switzerland, Geneva
Organisation Mondiale de la Santé
Biggs, Beverley Ann
Australia, Melbourne
Royal Melbourne Hospital
Statistics
Citations: 77
Authors: 2
Affiliations: 4
Identifiers
Doi:
10.4269/ajtmh.2007.76.203
ISSN:
00029637
Research Areas
Health System And Policy
Infectious Diseases