These groups of people are more likely than others to develop "corona".

Studies show that people with chronic diseases are the most susceptible to infection with the emerging coronavirus, especially those with diabetes, heart disease and lungs.

This is a matter of concern for millions of people in the world, including about 7.4 million in Britain, who suffer from some form of heart disease or blood circulation, including 4.8 million people who suffer from diabetes.

As the cause of death of Covid-19 patients has shown, the most common risk factor is the lungs, because it is the organ that is most likely to be affected by the Coronavirus.

According to John Cohen, a professor of infectious diseases at Brighton and Sussex Medical School, “A coronavirus causes an infection in the lungs, or pneumonia. When the lungs become infected, any type of pneumonia, not just Covid-19, is filled with fluid that is caused by inflammation. The body has to work harder to deliver oxygen to the blood, "the Guardian newspaper reported.

He added that the heart and lungs work "as an integrated team, so when there is pneumonia, the heart must work more strongly, and it is clear that if there are pre-existing heart diseases it will increase the pressure on the heart."

Initial reports about the new Corona virus epidemic, which started in China in late December, indicated that 40 of the people who were infected with the virus were very difficult and suffered greatly while receiving treatment in hospital due to their previous suffering either from cardiovascular disease or disease Cerebral blood vessels, which affects blood flow to the brain, such as a stroke.

Explanation of this, Orly Vardini, associate professor of medicine in health care systems at the University of Minnesota, said, "These statistics do not mean that people with heart disease are more susceptible to infection with the Coronavirus, but that these people are only more likely to develop complications once they become infected."

According to Vardini, people with sebaceous build-up or plaques in their arteries can be at risk of having a heart attack, because viral diseases similar to Covid-19 can destabilize these plaques, which can then block the artery leading to the heart.