Coronavirus September 21, 2020 5:43 pm Flu Shot Side Effects and COVID Symptoms of the common flu and side effects of the vaccine may overlap with many COVID-19 symptoms. One urgent care doctor in Massachusetts explains similarities and differences. US & World Videos 1:39 Lawrence police cracking down on illegal dirt bikes 1:31 CDC recommends updated Covid shot for everyone ages 6 months and up 2:30 Putting an increase in COVID cases into context 1:41 COVID cluster prompts masking at Beth Israel Deaconess Medical Center 0:50 COVID cluster at hospital prompts return of mask requirement in affected unit