With 33 million people affected by flooding, increased risks of waterborne diseases and disrupted access to healthcare.

Dr Khan on why we need to identify those at risk of long COVID and understand the underlying causes of the illness.

Dr Khan looks at ground-breaking results from a drug trial with a small group of rectal cancer patients in the US.

Why COVID cases are rising and what we know about how past infections and vaccines interact with Omicron BA.4 and BA.5.

Vaccines changed the pandemic’s course. A look at other life-changing vaccines and why hesitancy undoes progress.

A look at why some people report pleasant smells as rancid and how mint and garlic could help retrain noses.

What you need to know about the possible links between contracting COVID-19 and developing diabetes.

Dr Khan looks at the new outbreak of an old virus that has been detected in about a dozen countries in two weeks.

When large volumes of two viruses that are genetically linked circulate, there’s a risk of a new ‘hybrid’ virus forming.

As experts investigate a surge in cases of hepatitis among children, Dr Khan explains the symptoms to look out for.