Nancy R. Gough 
T cells are a major component of the adaptive immune system. The video shows the intracellular events that let T cells learn about and recognize virus-infected cells. Infected cells can use the major histocompatibility complex (MHC) I or MHC II pathway to signal to T cells that they are infected. Both pathways rely on the … Read more
Contamination of an aromatherapy spray, made in India and sold by Walmart, results in bacterial infection that causes deadly melioidosis.
Test the risk of different activities in contracting COVID-19 using this online tool from the BMJ
This video explains how cells process virus proteins so that T cells can recognize infected cells.
Data show that vaccine effectiveness against severe COVID-19 and transmission is high. Although COVID-19 zero is not a possibility, reducing deaths from COVID-19 to close to zero is possible with the COVID-19 vaccines. The research also indicates that the vaccines reduce transmission of COVID-19. So the news is excellent! The two images below provide summary … Read more