I am blood group O+ as well....I had horrible reactions to my MMR given to me as and child whilst my family was stationed in Germany...my Dad was an Air Force Pilot. But I was lucky, I grew up on a farm in the Wilderness of Oregon's backcountry, good clean living playing in the wild forests most of my life. My Mom had no clue about health and food though. But my Grandma did, she had all the knowledge from my ancestors on how to grow food and eat healthy. Growing up in farming country here in America is toxic because of chemical use from herbicide and pesticide...I've been able to clean my system through detoxing and eating chemical free foods. So no matter what our age or background I think a damaged immune system can be repaired.
, you are blessed with a good parents, the world needs you data on good health! <3
RE: The History Of Vaccines Series