Lymphatic Filariasis in Thailand A Review on Distribution and Transmission
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چکیده
Introduction As early as 1919, MENDELSON (20) mentioned in his paper on "Tropical diseases observed in Siam" fever and elephantiasis in connection with microfilaraemia in Thailand. The disease causing filariae, however, were not further specified. Over 30 years later IYENGAR (17) conducted a survey on human filariasis in four southern provinces on the peninsula of Thailand. Of a total of 4,112 inhabitants examined, 2196 proved to be infected with microfilariae of Brugia malayi and 5.696 showed signs of elephantiasis. Only in one person, a young Chinese man, were microfilariae of Wuchereria bancrofti observed. IYENGAR assumed that this infection must have had been acquired in China before the man immigrated to Thailand. During these early investigations no attention was paid to the periodicity of the parasites. First reports on periodic and subperiodic forms off?, malayi from Thailand were only published in 1961 by NAIR and CHAYABEJARA (21) and in 1963 by WONGSATHUAYTHONG et al. (27), respectively. The latter group also reported several cases of bancroftian filariasis from South Thailand, not far from the Thai-Malaysian border. The first endemic area of bancroftian filariasis with microfilariae showing a subperiodic behaviour was described by HARINASUTA et al. (14) from an area located north-west of Bangkok.
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تاریخ انتشار 2010