Introductions and early spread of SARS-CoV-2 in the New York City area

I’m working on a Science question and need guidance to help me study.

Please read the following research article and then answer the four questions related to the article (I have attached the questions below)

https://learn-us-east-1-prod-fleet01-xythos.s3.ama… (This’s the article)

The answer doesn’t have to be long as long as you answer the questions.