[otabdeveloper1]

Presumably, by getting a bacterial test. That's done in a lab and isn't a doctor's job.

[mschuster91]

Don't need a lab test for this one, there's a swipe test to determine if it's viral or bacterial.

Source: had about 40 or more in my life, was prone to tonsilitis for ages.

[sgift]

The doctors job is to decide which lab tests are needed based on checks they can do and their expertise.