lung

It can lead to lung injury, coma and death within seconds when consumed in large amounts, but even small doses can still be very harmful.

Oz, 64, trained as a cardiothoracic surgeon – specialising in operations on the heart and lungs – and worked at New York City’s Presbyterian Hospital and Columbia University.

Heart failure occurs when the heart does not pump blood as well as it should, resulting in decreased blood flow to organs and fluid buildup in the lungs and other tissues.

The study also found no adverse effects on lung tissue following immunization, highlighting the vaccine's safety.

Pneumonia, when there is inflammation in the lungs because of an infection, is more common after cold weather, external.