The immune system: Cells, tissues, function, and disease

COVID-19 vaccines If you have a weakened immune system due to a health condition or medical treatment, and you are aged 6 months or over, you

IMMUNE SYSTEM definition: 1 the cells and tissues in the body that make it able to protect itself against infection 2 the… Learn more

digestive system Explore the basics about the immune system with The Amoeba Sisters! This video talks about

excretory system Your immune system responds and eliminates the invaders while the skin heals itself and seals the puncture In rare cases the immune system misses something and