Part 4 of 10: Long-Term Outlook
As an otherwise healthy adult, you are most likely to recover from bacterial gastroenteritis in under a week. Those who are elderly or very young are more vulnerable to the effects of gastroenteritis and may occasionally experience serious complications. They should be closely monitored as they may need hospital care.
Part 3 of 10: Risk Factors
If your immune system is suppressed by an existing illness or treatment, you are more at risk of bacterial gastroenteritis. Your risk may also be increased if you take drugs that decrease the acidity inside your stomach.
Incorrect handling of food tends to raise the risk of bacterial gastroenteritis. If food is undercooked, stored at room temperature for too long, or insufficiently reheated, bacteria in it will survive and may even multiply more quickly. Some bacteria produce harmful substances known as toxins. And these toxins carry on after the reheating process even when the bacteria themselves do not.