Top COVID-19 Symptoms Amongst Fully Vaccinated – Headache And Runny Nose November 18, 2021 New data from the ZOE COVID study in the UK shows that the most common COVID-19 symptoms amongst the fully vaccinated are almost indistinguishable from a common cold. The most common COVID-19 symptoms in vaccinated people are a headache (73%), runny nose (73%), sneezing (60%), sore throat (49%), and cough (49%). These results demonstrate the importance of getting tested even if you only have mild symptoms of COVID-19. It is still possible to get COVID-19 after being vaccinated, however you will be much better protected against severe illness and hospitalisation.