Meanwhile, other than producing more sputum, the other common warning signs of coronavirus include a new, continuous cough, shortness of breath, and the characteristic fever.
People are also more likely to be infected if they have at least two other symptoms, according to the US Centers for Disease Control and Prevention.
These include a fever, chills, repeated shaking with the chills, muscle pain, sore throats, or a loss of taste or smell.
Headaches could also be caused by the coronavirus, which may easily be dismissed as a common occurrence.