Explore the basics about the immune system with The Amoeba Sisters! This video talks about the three lines of defense and also compares cell-mediated response with the humoral response.

The urushiol molecules in poison ivy have the ability to trigger a harmful immune response in most people because the immune system mistakenly labels them as a threat.

Doubts have arisen around the efficacy of China’s Sinopharm vaccine after Bahrain began recommending over-50s with comorbidities get a booster of Pfizer-BioNTech six months after their second Sinopharm shot. <br/>

In this video, we explore the adaptive immune system and the interplay between helper T-cells, cytotoxic T-cells, and B-cells.