According to one of the references[1]: > Many doctors believed that only vulgar people used the term to ­describe a tightening sensation in the chest, difficul

According to one of the references[1]: > Many doctors believed that only vulgar people used the term to ­describe a tightening sensation in the chest, difficulty breathing and a cough. [1]: https://inews.co.uk/inews-lifestyle/wellbeing/polio-soon-officially-eradicated-five-gruesome-illnesses-no-longer-us-83471 https://inews.co.uk/inews-lifestyle/wellbeing/polio-soon-off...