People with hard-to-treat asthma often have to use medicines such as systemic steroids that broadly suppress the immune ...

Vaccines are one of the most powerful tools in modern medicine. They help protect people from serious diseases by training ...

As respiratory illnesses – such as influenza, COVID-19 and RSV – have continued to increase in recent months, it seems as if our immune systems have received more attention than ever. However, many ...

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, ...

The human immune system is adaptive, remembering past infections and training itself to guard against future similar infections. But what happens when people have compromised immune systems due to ...

Millions of people worldwide carry viral infections they acquired at birth, often for life. For a long time it was assumed ...