He said that even though the symptoms of both the diseases are similar, Covid-19 spreads more easily than flu. He explained that the influenza comes under viral fever and many patients that come to see him suffer from fever, and the second common symptom seen in such patients is cough. 🍏 H3N2 Scare: Cough and Cold Cases Up by 40%, Say NCR Docotors As They Prepare for Influenza Virus.