Possibly the best way would be through education.
Countries try differing methods depending on the ideology of the country. Some may seem drastic to some societies, such as the one child rule in China. Other methods employed include abortion, contraception and forms of euthanasia. Many different methods have been employed over time for social and economic reasons.
It is unlikely there is a single solution.
Quarentine
Profalactic
removed stagnate water
Washing it is a good preventive measure.
It's when there is something you're trying to stop (prevent) from happening, so you take a preventive measure (do something) to stop the thing you think might happen.
Exercise.
synthetic immunoglobulins
Yes, arrest is used as a preventive measure. Criminals, thieves and robbers are usually arrested so that they do not cause problems to the public.
synthetic immunogobulins
there is no cure for malaria, however, it can be treated with doses of quinine, also to be used as a preventive measure.
The separation of the Purchasing Department and Accounting Department personnel would be a preventative control measure.
what is the overpopulation for striped dolphin