Intensive care models (ICUs) are specialist wards inside a hospital that take care of people who find themselves very in poor health.
They’re geared up with a variety of extremely technical monitoring gear and employees who’ve been specifically skilled.
Coronavirus sufferers have issues with their lungs and so are often admitted to ICUs to allow them to get assist respiration.
As Prime Minister Boris Johnson continues to be handled for coronavirus in an ICU, BBC well being correspondent Laura Foster explains how they work.
Video by Tobias Chapple, Terry Saunders and Laura Foster.