有關food poisoning 英文project~~~~~~~~~~

The delay between consumption of a contaminated food and appearance of the first symptoms of illness is called the incubation period. This ranges from hours to days (and rarely months or even years, such as in the case of Listeriosis or Creutzfeldt-Jacob disease), depending on the agent, and on how much was consumed. If symptoms occur within 1-6 hours after eating the food, it suggests that it is caused by a bacterial toxin or a chemical rather than live bacteria.
During the incubation period, microbes pass through the stomach into the intestine, attach to the cells lining the intestinal walls, and begin to multiply there. Some types of microbes stay in the intestine, some produce a toxin that is absorbed into the bloodstream, and some can directly invade the deeper body tissues. The symptoms produced depend on the type of microbe.....

If you want to seek the Hong Kong information：www.fehd.gov.hk/safefood/library/Staphylococcal/staphylococcal3.html
If you want to seek the foreign information：vm.cfsan.fda.gov/~lrd/advice.html