Antibodies, which recognize viruses and proteins that the body has encountered before, have long gotten most of the credit for giving the human immune system a memory. Now, researchers at the ...

Add Yahoo as a preferred source to see more of our stories on Google. Regulatory T cells (red) interact with other immune cells (blue) and modulate immune responses. National Institute of Allergy and ...

The immune system is our frontline protection against infection, continually searching for and destroying unknown pathogens.

During the recent Covid-19 pandemic, the rate of serious illness and death was jarringly high in older populations. Why? Weakening immune systems — as we age, we become more vulnerable to infections, ...

I am lying under a blanket, feeling rough, staring at a bowl of oranges. Every fibre of my being is urging me to devour the lot. I can hear my mum – and medical friends at university – insisting that ...