Eat the Wrong type of Raw fish...e.g Snake head, Asian Cap ( Chinese called
chow her) Grass Fish?? Never patronized those hawker stall
that sells raw fish they are Not Properly refrigerated, they are
reckless just place the raw fish in plastic container and serve customers !!
The best is still Tuna from the Ocean!! still Japanese has got
the Highest Incident of Stomach Cancer in the World, because of
eating too much Shashimi!! ...Shashimi can be raw horse meat,
other animal meat eaten raw including fish! What causes stomach
cancer only God knows!!