Flu shot (Influenza vaccination) was not made for COVID-19 and it does not cure COVID-19. However, getting all recommended vaccination is recommended for sound immune system of family members during seasonal flu circulation. The annual influenza vaccination is recommended by the U.S. Centers for Disease Control and Prevention to be taken from September and October through January as long as flu is still on. So, it is safe to get your annual flu vaccination from September and October. However, follow all recommended flu-shot guidelines and answer all usual pre-flu shot health questionnaire before taking one. Talk to your physicians on taking flu shot, if you have any serious or special health conditions.