It is caused by a germ called Vibrio cholerae , and is spread most often through infected food or water. If you are traveling to cholera-infected areas, avoid eating uncooked food, especially fish and shellfish, and peel fruit yourself. However, it is a problem in parts of the world that do not have such systems. Therefore, it is very important to avoid infected persons and food and water that may be infected, even if you have received the vaccine. To get the best possible protection against cholera, you should complete the vaccine dosing schedule before you travel to areas where you may be exposed to cholera.
Cholera vaccine is to be administered only by or under the supervision of a doctor.
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. Tell your doctor if you have ever had any unusual or allergic reaction to cholera vaccine. Also tell your health care professional if you are allergic to any other substances, such as preservatives. Studies on effects in pregnancy have not been done in either humans or animals.