p 236-7 Eat Right 4 Your Type by Peter D'Adamo

Recently vaccinated Type O children should be watched carefully for a couple of days to ensure that there are no complications. Don't give them acetominophen, the most commonly prescribed over-the-counter medication for vaccination-related problems (found in Tylenol). In my experience, Type O children seem to react poorly to this drug. A natural remedy that will work for Type Os is available at most health food stores. It is an herb called feverfew, derived from the common chrysanthemum flower (Chrysanthemum parthenium). In liquid tincture form, feverfew can be given to a child every few hours. Four to eight drops of the tincture in a glass of juice is sufficient to achieve a positive effect.

If you are a pregnancy woman with Type O blood, the flu vaccine holds special dangers, especially if the father of your baby is a Type A or Type AB. The flu vaccine could boost the presence of anti-A antibodies in your system, which could attack and damage your fetus.

Type A and Type AB Vaccine Sensitivities

Type A and Type AB children respond well to vaccines. A full vaccination program--including the whooping cough vaccine--should produce few side effects.

In contrast to Type O, Type A and Type AB children should take the injectable form of the polio vaccine because their digestive mucus does not react well to the oral polio vaccine.

Type B Vaccine Sensitivities

Type B children sometimes have severe neurological reactions to vaccinations. Parents should be acutely aware of any signal indicating a complication, be it an alteration in your child's walking or crawling gait, or a personality change of some kind. If you intend to vaccinate your Type B child, it is imperative that you make sure he or she is first completely healthy---free of colds, flu or ear infections. Like Type Os, Type B children should use the oral form of polio vaccine.

Why do Type Bs tend to react so badly to vaccines? Type Bs produce an enormous number of B antigens in their nervous system. I believe a cross-reaction occurs in the Type B immune system when a vaccine is introduced that causes the body to turn and attack its own tissues. It may be the vaccine itself that causes this cross-reaction. Or perhaps it's one of the chemicals used to enhance the vaccine's effectiveness. It might even be the culture medium used to grow the vaccine. We just don't know yet.

Pregnancy Type B women should also avoid the flu vaccine, especially if the father of the child is of Type A or Type AB blood. The flu vaccine could increase your production of anti-A antibodies, which could interfere with the healthy development of the fetus

Pregnancy and Type B or O women FLU vaccine warning (taken from excerpt in other column):

If you are a pregnant woman with Type O blood, the flu vaccine holds special dangers, especially if the father of your baby is a Type A or Type AB. The flu vaccine could boost the presence of anti-A antibodies in your system, which could attack and damage your fetus.