Summer weather has not stopped spread of coronavirus, and a new study identifies 6 "types" of COVIDA new study of COVID-19, based on data from a symptom tracker app, determined that there are six distinct "types" of the disease involving different clusters of symptoms. Typically, doctors will look for key symptoms such as cough, fever and loss of the sense of smell to detect COVID-19. The study, which has not been peer-reviewed, says the six different "types" of COVID-19 can vary by severity and come with their own set of symptoms. Flu-like with fever: Headache, loss of smell, cough, sore throat, hoarseness, fever, loss of appetite. The second type, "flu-like with fever," includes symptoms like loss of appetite, headache, loss of smell, cough, sore throat, hoarseness and fever.