Answer:
Indian says namastay or do handshakes
He considered Germany the most dangerous enemy. None felt Japan posed a serious long term threat
The capitol of Louisiana is Baton Rouge. <span />
I believe the answer is: positive externality
Positive externality refers to The benefit that enjoyed by a third party when the first and second party are conducting a transaction.
When you receive a vaccines, you prevent yourself from becoming a host that could contaminate other people from getting the virus. In the example above, you and your children are the first and second party. And other children are the third party.