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Reported is the seasonal pattern of Opisthorchis viverrini metacercariae in cyprinoid fish in north-east Thailand. Samples of fish were collected in 1991-92 at monthly intervals from two areas-Khon(More)
The study design of a project to investigate the epidemiology, population dynamics and control of intestinal nematode infections in fishing village communities in Southern India is described. The(More)
A group of 87 adults from a small village in north-east Thailand was chosen to undergo ultrasound investigation based on their intensity of infection with the liver fluke, Opisthorchis viverrini, or(More)
The cosmopolitan nematode parasites Ascaris lumbricoides, Ascaris suum, and Toxocara canis are closely related phylogenetically, and are all pathogenic to man. In the case of the latter, the antigens(More)
Three techniques for estimating the intensity of Opisthorchis viverrini infection in individuals from a Northeast Thai community are compared. Egg counts were determined using a quantitative(More)