1.   The doctor took a throat swab to check for infection.

2.   The doctor took a throat swab and sent it to the lab.

3.   We just have to do some more throat swabs.

4.   Parents will keep health diaries, and researchers will collect throat swabs from children who get the bug.

5.   If the person has serious symptoms or is in a panic, doctors take a throat swab for viral culture and a blood test.