Improvement of methods of quality control of vaccines against porcine erysipelas

DOI 10.33861/2071-8020-2022-2-18-20

Kuzmenko M.A., Tsaturyan L.G., Sklyarov O.D., Chernykh O.Yu., Krivonos R.A., Basankin A.V.

Summary. The use of antibiotics for the prevention of diseases of bacterial etiology in young pigs leads to a decrease in the post-vaccination immune response of the animal organism, especially in the case of immunization with live vaccines against erysipelas. This leads to an increasing use of inactivated anti-erysipelas vaccines. Taking into account the fact that to control the quality of vaccines against erysipelas in terms of «immunogenic activity», a unified approach has not been developed, the authors conducted a comparative test of methods for assessing the specific activity of vaccines against erysipelas in accordance with EF 0064, as well as regulatory documents (RD) of manufacturers and the proposed methodology «Test of protection of vaccinated mice from infection with a culture of a virulent strain». According to the test results, a 1/10 dose of vaccine for pigs, as a rule, prevented the death of 100% of control white mice immunized with the standard (quality-controlled in terms of immunogenic activity in piglets) and the test vaccine when challenged with a suspension of lyophilized culture of the strain Erysipelothrix rhusiopathiae 149 at a dose of 100 LD50 in a volume of 0.1 ml. Moreover, the non-compliance of individual vaccines with the requirements of the ND was confirmed by the results of the control of all tests. Thus, the results of this study allow us to conclude that the tests used in the work do not differ in diagnostic sensitivity and specificity and, accordingly, the Test for the Protection of Vaccinated Mice from Infection with a Virulent Strain Culture can be used to control the quality of vaccines against swine erysipelas.

Key words: pigs, swine erysipelas, immunity, vaccine, antibodies, antigen, virulent strain, enzyme immunoassay, white mice, diagnostic sensitivity, immunogenicity.

Referenses:

1. Vaktsina zhivaya sukhaya protiv rozhi sviney iz shtamma VR-2. GOST 28333-89. Tekhnicheskie usloviya [Live dry vaccine against porcine erysipelas from the BP-2 strain. Interstate standard 28333-89. Technical specifications]. -

Standartinform. - 2006. - 6 p.

2. Evropeyskaya Farmakopeya 8.0. 0064 «Vaktsina protiv rozhi (inaktivirovannaya) dlya sviney [European Pharmacopoeia 8.0. 0064 Vaccine against erysipelas (inactivated) for pigs (Vaccine against erysipelas of pigs (inactivated)].

3. Kislenko V.N., Kolychev N.M. Veterinarnaya mikrobiologiya i immunologiya: uchebnik [Veterinary microbiology and immunology: textbook]. - KolosS. - 2007 (3). - 215 p.

4. Rukovodstvo po infektsionnym boleznyam [Guide to infectious diseases]. -Foliant Publishing House. - Saint-Petersburg, 2011. - pp. 380-383.

5-6. Vide supra.

Author affiliation:

Kuzmenko Maria A., junior scientific researcher of the department of the bacteriology of Russian State Center for Animal Feed and Drug Standardization and Quality; 5, Zvenigorodskoe shosse, Moscow, 123022; phone: 8-915-4205878; e-mail: kuzmenko.m.a@bk.ru.

Tsaturyan Lusine G., Ph.D. in Veterinary Science, Docent, Deputy Head of the department of bacteriology of the Russian State Center for Animal Feed and Drug Standardization and Quality; 5, Zvenigorodskoe shosse, Moscow, 123022; phone: 8-925-2712044; e-mail: lousine23@yandex.ru.

Sklyarov Oleg D., Doctor of Veterinary Sciences, Head of the department of bacteriology of the Russian State Center for Animal Feed and Drug Standardization and Quality; 5, Zvenigorodskoe shosse, Moscow, 123022; phone: 8-916-2716154; e-mail: scliarov@yandex.ru.

Chernykh Oleg Yu., D.Sc. in Veterinary Medicine, Docent, professor of the Department of Microbiology, Epizootology and Virology of the Kuban State Agrarian University named after I.T. Trubilin; 13, Kalinina st., Krasnodar, 350044; phone: 8-918-4956659; e-mail: gukkvl50@kubanvet.ru.

Krivonos Roman A., Ph.D. in Veterinary Medicine, docent of the department of parasitology, veterinary-sanitary expertise and zoohygiene of the Kuban State Agrarian University named after I.T. Trubilin; 13, Kalinina st., Krasnodar, 350044; e-mail: uv@krasnodar.ru.

Responsible for correspondence with the editorial board: Basankin Alexey V., Ph.D. in Veterinary Medicine, Head of the Department of Rapid Response in the Event of Contagious and Other Animal Diseases of the Veterinary Department of Krasnodar region4 phone: 8-918-9550057; e-mail: abasankin@mail.ru.