1. An aqueous composition comprising an antigen and a biological polymer of acrylic acid, wherein the composition contains an electrolyte for providing a higher osmolarity than the osmolarity of the aqueous solution of 0.9 wt. / Vol.% Natriya.2 chloride. Composition according to Claim. 1, wherein the osmolarity of the composition is at least 50% higher than the osmolarity of the solution to 0.9 wt. / Vol.% Natriya.3 chloride. Composition according to claim. 1, comprising more than 0.2 wt. % Acrylic polymer kisloty.4. Composition according to claim. 3, comprising more than 0.5 wt. % Acrylic polymer kisloty.5. Composition according to claim. 4, comprising 0.8 to 1.6 wt. % Acrylic polymer kisloty.6. Composition according to Claim. 1, wherein the acrylic acid polymer is a crosslinked polimer.7. A composition according to claim. 6, wherein the acrylic acid polymer crosslinked using polialkenilefir, a polyhydric alcohol and / or divinilglikol.8. Composition according to Claim. 1, comprising an electrolyte comprising a multiply charged kation.9. A composition according to claim. 8, in which the cation is present at a concentration of up to 0.05M, preferably up to 0.03 M.10. Composition according to Claim. 1, wherein the biological antigen is an antigen that when administered temperaturu.11 causes increased. A composition according to claim. 10 wherein the antigen is selected from the group consisting of gram negative bacteria and antigen tsirkovirusa.12 antigen. A composition according to claim. 10 wherein the antigen is selected from the group consisting of an antigen of Actinobacillus pleuropneumoniae, Haemophilus parasuis antigen and the second antigen circovirus tipa.13. Composition according to claim. 1, comprising porcine circovirus antigen and the antigen of the second type of bacteria Mycoplasma hyopneumoniae for use as a vaccine, which is administered after a single1. Водная композиция, содержащая биологический антиген и полимер акриловой кислоты, причем композици
