Sat, January 24, 2026 at 2:56 PM UTC The immune system is the body’s natural defense network that helps to keep you healthy from things like bacteria, viruses, and parasites. It’s a complex network of ...

Researchers at the University of Virginia School of Medicine have identified a specific enzyme inside immune cells that keeps Toxoplasma gondii, one of the most common brain parasites on the planet, ...

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, ...

Why can the human immune system often remember a vaccination for a whole lifetime? Researchers at ...

Your immune system could weigh 1 to 1.2 kilograms and contain 1.8 trillion cells. “The immune system is a complex system comprising many different cell types with essential functions,” says Ron Milo ...

Sepsis remains a major challenge in modern medicine, claiming millions of lives each year. For decades, clinical management has largely focused on suppressing excessive inflammation.

Aptamers are short, single-stranded nucleic acids that can fold into specific three-dimensional structures, allowing them to bind target molecules with high ...

Your immune system may be weak if you have frequent, severe, or extended infections. Learn more signs of a weak immune system.

It's widely known that breastfeeding impacts the health of both mother and child, but the underlying biology that leads to ...