The results of a large, prospective Swedish trial of a 23-valent pneumococcal vaccine are in and the data indicate that the pneumococcal capsular polysaccharide vaccine does not prevent community-acquired pneumonia in middle-aged and elderly individuals.
Lancet February 7, 1998;351:399-403
COMMENT: The pneumonia vaccine is one of the safest vaccines. Unfortunately this study suggests that it does not work for its intended purposes. Dr. D'Adamo is a naturopath who wrote the book Eat Right For Your Type last year. He is a strong proponet of using the pneumonia vaccine in all individuals who are NOT blood group A for the purpose of protecting against breast cancer. The vaccine appears to stimulate an immune response in non blood type A individuals which helps improve the recognition of breast cancer cells. He is currently in the process of compiling his research and plans on publishing it in the near future.