Studies on the migratory route of Paragonimus siamensis in the bandicoot (Bandicota indica).

The migration route and the development of P. siamensis obtained from S. juliae and S. germaini were studied in B. indica. The infection rates of P. siamensis in these 2 species of crabs were 19.7% and 21.4% respectively. Worms were recovered in the abdominal cavity, pleural cavity and lungs on day 12, 16 and 30 respectively after oral infection. Worms became mature and laid eggs on day 47 after infection, but their size still increased considerably. The average egg output was found to be 144 eggs/gm faeces/worm or 443 eggs/day/worm. The average recovery rate of P. siamensis in the experimental B. indica was 15%.