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The most recent study, led by scientists from Australia’s University of Technology Sydney, indicates that smoking may increase the genetic contribution to Covid-19 infections.

 

The new coronavirus enters the body by hijacking proteins on the surface of healthy cells, in particular a protein called angiotensin-converting enzyme 2 (ACE2).

In adult lungs, just three cigarettes can increase the activity of genes with the information for building ACE2, according to an international research team led by Dr Alen Faiz.

Dr Faiz told Reuters that ACE2 levels were lower in people who had stopped smoking for more than a month.