The immune system is often viewed as a simple line of defense against illness, but its role extends far beyond fighting off infections. It functions as a sophisticated network of cells, tissues, and ...

Immunosenescence can occur in the elderly or aging population and involves a decrease in many immune functions, which leads to the immune system having reduced efficacy when responding to infections ...

Harvard Medical School scientists have identified a key protein in the human immune system that drives inflammatory and autoimmune conditions when it turns against the body. The protein, Granzyme K, ...

An international research team has discovered a critical protein that acts as a 'switch' regulating immune responses to viruses. Even after the COVID-19 pandemic, various new infectious diseases ...