Q: Where did west nile first appear?


Read this paragraph and choose the correct option from the provided answers:

The first case of West Nile virus in North America occurred in 1999. Within just a few years, the virus had spread throughout most of the United States. Birds as well as humans can be infected with the virus. Birds often fly long distances. This is one reason why West Nile virus spread so quickly.

 Choices:

- Central America

- North Africa

- Southeast Asia

- north america


A:
north america