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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/21401
Title: Seasonal fluctuations in the carriage of Plasmodium vivax gametocytes in Thailand
Authors: M. Nacher
V. I. Carrara
R. McGready
E. Ashley
J. V. Nguen
K. L. Thwai
S. Looareesuwan
F. Nosten
Shoklo Malaria Research Unit
Institut Pasteur, Paris
Mahidol University
John Radcliffe Hospital
Centre Hospitalier Andree Rosemon
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Mar-2004
Citation: Annals of Tropical Medicine and Parasitology. Vol.98, No.2 (2004), 115-120
Abstract: To study the influence of season on Plasmodium vivax gametocyte carriage, the relationship between monthly rainfall and the proportion of P. vivax patients with detectable gametocytaemia was analysed. Most of the data used came from 6807 aggregated observations collected, in a refugee camp on the Thai-Burmese border, between January 2000 and December 2002. There was a positive correlation between rainfall and the incidence of P. vivax infection (Spearman's rho = +0.42; P = 0.01) but the prevalence of gametocyte carriage among those with P. vivax infection was negatively correlated with rainfall (Spearman's rho = -0.58; P < 0.001). The latter, negative correlation remained significant after controlling for the proportion of visitors relative to camp residents (P = 0.003). Migrations, changes in transmission patterns, seasonal haematological changes, and ultraviolet immunosuppression are discussed as potential explanations for these observations.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=1642413247&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/21401
ISSN: 00034983
Appears in Collections:Scopus 2001-2005

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