The difference between influenza and common cold includes the following: 1. Influenza: acute respiratory infections caused by influenza viruses type A, B and C, manifested as sudden onset of chills and high fever, generalized muscle and joint aches, runny nose, fatigue, loss of appetite, and a body temperature of 39℃-40℃ or more. Influenza A is the most contagious; 2, common cold: mainly caused by rhinovirus, respiratory syncytial virus, parainfluenza virus infection, manifested as fever, nasal congestion, runny nose, sneezing, sore throat, body temperature at about 38 ℃, 3-5 days can be self-healing.