@irene.....I had the high test...strongest flu shot available.....didn’t know I could get another shot......my doctor said that there are so many strains of flu out there and that each year they try to concoct the best vaccine based on what strain they think is most prevalent that year. They are doing what they say is the best to protect us but right now that protection is only 50%...better than nothing but not the best odds. . Let’s hope this new research energy and drive to find a vaccine for Covid will spill over into improved flu immunity....as we know more people the get the flu than Covid.

.