Mark has a high fever and an upset stomach. He always eats lunch with his friend,
Steve, who was coughing a few days ago and is now staying home sick from school.
Mark's teacher asked him if he had a vaccination this year, but Mark does not remember
getting any shots in the last few years.
![Mark has a high fever and an upset stomach He always eats lunch with his friend Steve who was coughing a few days ago and is now staying home sick from school M class=](https://us-static.z-dn.net/files/d62/8e96e4978d75b25955535b10e9ed3dcf.png)