You must mean disease. The first and most effective way is to wash your hands throughout the day with simple soap and water.
It is safe to prevent some things, but, others you must not prevent.
Prevent
You can't prevent it.
What is there to prevent?Nothing will happen!
I prevent a cool show.
If you have a question like this though, what shold be the answer? If it asks you this in your spelling..
No, "prevent" is not a compound word. It is a single, standalone word.
I don't think so? But I heard sperm can prevent wrinkles, or help prevent them.
no it can't prevent pregnancy
prevent the occurrence of prevent something from happening
I bet it is to prevent the Flu.
"Prohibere"---to prevent.