BEVAC has proven for low reactogenicity and is well tolerated. Open and comparative trials did not show adverse reactions in the vaccinees. Soreness at the site of injection or a febrile reaction may be observed in some subjects. In rare cases of post vaccinal hypersensitivity, the common symptoms that are quickly recognized by the physician are: dizziness, headache, nausea, abdominal pain, rash, pruritus, urticaria, arthralgia, myalgias and similar associated symptoms and side effects.