To protect the victim, to deter the defendant from further violent acts by holding him accountable for his actions, and to communicate to the community that domestic violence will not be tolerated.
They often blame someone else for something they did. They can also give a reason for why they can or cannot do something. They also make excuses.
Explanation:
This warning was most likely issued to prevent people from bringing SARS to the USA when they come back from visiting the countries. So the answer is pretty much to stop the spread
