Many patients with coronavirus infection experience a skin rash that acts as the main symptom, British Journal of Dermatology reported referring to a new study.

The study authors analyzed information provided by 336,847 patients who used the COVID Symptom Study app.

Skin rashes were more common in adults who tested positive for coronavirus than those who tested negative. Interestingly, among respondents to an online survey, 17% of SARS-CoV-2 coronavirus cases reported a skin rash as the first manifestation and 21% as the only clinical sign of coronavirus infection.

In collaboration with the British Association of Dermatologists, the researchers compiled a catalog of images of the most common skin manifestations of COVID-19 in 400 people.