Hi, Welcome to Spiral, free apps for collaborative learning. You can launch this free activity from here.

1. Introduction to the Course

By Mark Ashworth 29 Sep 15:16
chronic epidemic AIDS SARS avian flu influenza syphilis microbial pandemic history biology syllabus scapegoating public health bubonic plague Display all tags
1 slide
Spiral is being used in 142 countries and counting. See what teachers are saying. View more
Sorry, your browser does not support inline SVG.