How do you know if the articles in a journal are peer-reviewed? Check Ulrich's.
Some databases allow you to limit to peer-reviewed articles. For other databases, you need to look up the title of the journal in Ulrich's.
1. Go to Ulrich's: Click to open Ulrich's.
2. Type the JOURNAL TITLE (not the article title) into the search box, and click the green search button.

3. In the search results, look for a referee jersey icon to indicate that a journal is refereed, which is a synonym for peer-reviewed.

4. Or you can click on a journal to see the full record. If it says Refereed Yes, then you know the journal (and the articles published in it) are refereed/peer-reviewed.

5. The Journal of Infectious Diseases IS peer reviewed.