Southeast Asia

This disease’ incubation period is 1-3 days.
After the period, patients will get fever, feel cold, have a stomachache, vomit and have diarrhea.
Severe vomiting and excessive diarrhea causes dehydrate.
Dysentery also causes to loss of appetite and have bloody stools.

Dysentery bacillus causes inflammation of the mucous membrane in patient’s large intestine.
Sometimes, this bacillus makes toxin.

In developing country, people excrete in the river.
They use the river’s water for daily life.
It causes the infection spread.