Field of application: the invention relates to veterinary medicine and, in particular, to vaccinology and pharmacy, and is intended for the prevention and treatment of infectious and other diseases of humans and animals, where low allergenic low reactogenic vaccination is used. The essence of the invention: developed vaccines with increased immunogenicity, low allergenicity and reactogenicity, containing antigen/toxin and adjuvant, wherein that they contain vaccine antigen/toxin inactivated by electromagnetic radiation in the ultraviolet and visible regions of the spectrum in the presence of a solution of photosensitizer and salts of divalent metals, and then covalently modified according to the residues of amino groups and hydroxyls groups of antigen/toxin available for modification, at least two modifying agents at the same time in terms of 0.01-10.0% of the mass concentration of the antigen/toxin protein, and as an adjuvant it contains hydrosol hydroxide ferric chloride.