Hi,
Welcome to HCM!
Stomach bugs are usually spread by Faeco-oral route. That is, a sick person emits out the bug or its cysts in his stools. These are carried by vectors such as house fly to new food, which when consumed by a person makes hi, infected as well.
Now, there is no reason to be worried about catching the stomach bug, specially if no one in your household has it.
Just taking few simple precautions will help you in preventing it:
1. Drink clean and boiled water.
2. Ensure the vegetables and meat are properly washed.
3. Ensure they are properly cooked.
4. Hands should be washed before eating.
5. When eating outside, make sure the place is hygienic.
Just following these simple steps will prevent you from getting any
stomach infection.
Also, you may take one tablet of
Albendazole for de worming if you haven't taken one in the last few years.
Hope this information helps. Feel free to ask if you have any doubt.
Wishing you good health.
With warm regards,
Dr. Sridhar