scholarly journals Clinical results of an inactivated anti-brucella vaccine in combination with immunomodulators

2020 ◽  
Vol 13 (4) ◽  
pp. 758-763
Author(s):  
Fayssal Bouchemla ◽  
Valery Alexandrovich Agoltsov ◽  
Stepan Yuryevich Veselovsky ◽  
Sergey Vasilyevich Larionov ◽  
Olga Mikhaylovna Popova ◽  
...  

Aim: The aim of the study was to obtain a vaccine against animal brucellosis having high immunogenic properties by carrying an evaluation of the effectiveness of split-conjugated animal brucellosis vaccine combined with fosprenil and polypeptide C as a molecular immunomodulatory adjuvant according to the results of serological studies of the blood of animals: Agglutination reaction, complement fixation, and rose Bengal sample. Materials and Methods: Eighteen calves of Holstein Friesians breed, aged 5 months, with a living weight of 100-150 kg, were divided into three groups of six animals each. All animals were healthy and they received a prophylactic vaccination against brucellosis. The dry split-conjugated vaccine against brucellosis in animals was dissolved in saline and for this purpose, 10 ml of saline was poured into the vaccine vial. Then the content was mixed, and afterward 1 ml was used per animal. Fosprenil was used at the rate of 1 kg of animal weight: 100 kg (calf weight) was multiplied by 0.05 (dose/1 kg of animal weight); 5 ml of fosprenil was obtained, which was collected into disposable syringes and intramuscularly sterilely injected into the croup area. Calves in the first group (control) were intramuscularly injected with the vaccine at a dose of 1.0 ml, and fosprenil at a dose of 5.0 ml was administered intramuscularly once to the croup area. Animals from the second group were subcutaneously immunized by the vaccine with polypeptide C at a dose of 1.0 ml. Polypeptide C is a solution that was poured into a vial with a vaccine at a dose of 10.0 ml, the content was mixed, and then calves were injected subcutaneously into the middle third of the neck in 1 ml (10 doses in a vial). Immunization of calves in the third group was carried out with a vaccine, diluted with an isotonic sodium chloride solution of 0.9%, at a dose of 1.0 ml subcutaneously once. At the 14th, 30th, and 90th days after vaccination, a blood sampling was taken for serological tests: Agglutination test, complement fixation test, and rose Bengal test. Results: After conducting serological studies, it was noted that split-conjugated vaccine against animal brucellosis using fosprenil forms antibodies in large titers and they persist for a longer time in the body of animals compared to the other tested vaccine: The first combination with the immunomodulatory polypeptide C and the vaccine only on the physiological solution. Conclusion: The developed complex of split-conjugated vaccine against brucellosis in animals enhances the humoral immune response of the organism against brucellosis and improves the protection of animals against the disease when it is used with the immunomodulatory fosprenil. In the future, we want to expand the use of the resulting complex in the fight against brucellosis on a larger population and to study the change in cellular immunity after the introduction of the resulting complex on an animal organism.

Author(s):  
Widya Septiningtyas ◽  
Eko Sugeng Pribadi ◽  
Fachriyan Hasmi Pasaribu

Brucellosis is among the important diseases in livestock because the disease infects multiple species of animals and causes economic loss. Brucellosis in sheep is generally caused by Brucella melitensis and/or Brucella ovis. This study aimed to detect seropositive brucellosis in sheep. Serological tests used in this study was a parallel test between Rose Bengal Test (RBT) and Complement Fixation Test (CFT). Samples were collected from 150 sheep slaughtered in small ruminant slaughterhouse, Sentul, Bogor Regency. Seropositive proportion of brucellosis in sheep based on parallel test RBT and CFT was 52% (78/150).


1978 ◽  
Vol 80 (3) ◽  
pp. 365-371 ◽  
Author(s):  
R. J. Chappel ◽  
D. J. McNaught ◽  
J. A. Bourke ◽  
G. S. Allan

SummaryA total of 1887 bovine sera positive to the Rose Bengal plate test were subjected to other serological tests for bovine brucellosis: the complement fixation test using warm fixation (CFTW), the serum agglutination test (SAT) and the radioimmunoassay (RIA).The SAT was generally much less sensitive than the CFTW. Many sera, however, gave positive reactions in the SAT but no reaction in the CFTW or the RIA. These SAT reactions were attributed to IgM antibody.Comparison between the results of the CFTW and the RIA led to the conclusion that 200 ng could be used as a minimum diagnostic reaction in the RIA.


1999 ◽  
Vol 6 (2) ◽  
pp. 269-272 ◽  
Author(s):  
C. M. Marín ◽  
E. Moreno ◽  
I. Moriyón ◽  
R. Díaz ◽  
J. M. Blasco

ABSTRACT Competitive and standard enzyme-linked immunosorbent assays (ELISAs), rose bengal (RB), complement fixation, and agar gel immunoprecipitation with native hapten (AGID-NH) were compared by using sera from Brucella-free, Brucella melitensis-infected, and B. melitensisRev1-vaccinated sheep. The most sensitive tests were indirect ELISA and RB, and the most specific tests were AGID-NH and competitive ELISA. We show that RB followed by AGID-NH is a simple and effective system for diagnosing sheep brucellosis.


2020 ◽  
Vol 9 (7) ◽  
pp. e493974418
Author(s):  
Raphaella Barbosa Meirelles-Bartoli ◽  
Carolina de Alvarenga Cruz ◽  
Reiner Silveira de Moraes ◽  
Rafaela Assis Oliveira ◽  
Eric Matheus Nascimento de Paula ◽  
...  

The purpose of this article is to present results of a research in which the results of four serological tests were compared for the diagnosis of swine brucellosis in pigs from Brazilian herds in which the outbreak occurred in relation to other brucellosis-free.  Rose Bengal (RBT), complement fixation (CFT), agglutination plus 2-mercaptoethanol test (TAT+ME), and commercial fluorescence polarization assay (FPA) were used to test 333 sera (271 sows and 62 finishing pigs) from a Brucella suis infected swine herd and 1,100 swine sera from brucellosis free pigs taken at a slaughterhouse. Considering infected all the 271 sows from the outbreak, and interpreting results of the FPA according to the manufacturer directions, sensitivities observed were 95.94% for FPA, 94.83% for RBT, 93.73% for CFT, and 92.25% for TAT+ME. Considering infected all the pigs from the infected herd with a positive result in at least one test, sensitivities observed were 98.92% for RBT, 97.13% for CFT, 96.06% for FPA, and 94.98% for TAT+ME. Specificities of the tests were CFT and TAT+ME, 100%; FPA, 99.55%; and RBT 99.27%. Results indicated a good performance of all the tests, and the agreement among them was almost perfect.


1984 ◽  
Vol 98 (12) ◽  
pp. 1213-1216 ◽  
Author(s):  
Harbans Lal ◽  
O. P. Sachdeva ◽  
H. R. Mehta

AbstractSerum immunoglobulin (IgG, IgA and IgM) levels were determined in patients with chronic tonsillitis before and one month after tonsillectomy. The preoperative levels of serum IgG, IgA and IgM were significantly higher when compared with the controls. The increase may be due to repeated antigenic stimulation. The post-operative levels for the three immunoglobulins were decreased; however, a significant reduction was observed for IgG only where the mean value was comparable with the control group. The data confirm that tonsillectomy does not disturb the humoral immune system of the body.


1968 ◽  
Vol 66 (2) ◽  
pp. 249-267 ◽  
Author(s):  
F. T. W. Jordan ◽  
P. Kulasegaram

SUMMARYA comparison was undertaken of several serological tests in determining the response of chickens and turkeys experimentally infected with the A 514 strain of Mycoplasma gallisepticum.After a single intratracheal inoculation of chickens with a culture of the organism, the highest titres were obtained by the indirect complement fixation (ICF) test, followed by the tube agglutination (TA), haemagglutination inhibition (HI), slide agglutination (SA) and metabolic inhibition (MI) tests. By all these tests positive titres were observed within the first week and peak titres between the first and second weeks. At 5 months there was no positive reaction by the ICF test but most chickens gave positive readings by the TA, HI and SA tests for at least 14 months after infection, but turkey sera became negative by all tests after 3 months.A disadvantage of the ICF test was that sera up to a dilution of 1/8 and 1/16 for chicken and turkey respectively were anticomplementary, and in turkeys this masked the ICF titre, which presumably was low following one intratracheal inoculation. Titres in turkeys with the TA, HI and SA tests followed the pattern seen with chickens and were generally lower than those found by other workers probably because of the avirulent nature of the inoculum used.The WB test was the least sensitive of the agglutination tests but is useful as a flock test which can be undertaken on the farm.The MI test gave the lowest titres of all and antibodies could be detected for only 4 months following one intratracheal inoculation. Even with serum prepared by multiple inoculations in chickens the titre was never higher than 1/32 compared with 1/1024 for serum similarly prepared in rabbits.Precipitins were detected by the agar gel method in the sera of chickens and turkeys after two intratracheal inoculations but in only some of the chickens and none of the turkeys after one inoculation.By all tests higher titres were observed with chicken than turkey sera and antibodies persisted for a longer time.Re-infection of chickens when antibodies to the initial infection had become low, and of turkeys when antibodies were no longer detectable, gave rise to an anamnestic response with titres which were higher than before.Antiserum to M. gallisepticum prepared in chickens is comparable with that prepared in rabbits except for low titres by the MI test.


1976 ◽  
Vol 76 (2) ◽  
pp. 287-298 ◽  
Author(s):  
G. S. Allan ◽  
R. J. Chappel ◽  
P. Williamson ◽  
D. J. McNaught

SUMMARYBrucella-specific antibodies of different immunoglobulin classes were quantitatively evaluated with respect to their efficiency in serological tests for bovine brucellosis.IgM reacted more efficiently than IgG1and IgG2in both the Rose Bengal plate test and serum agglutination test. The complement fixation test was found to be slightly more sensitive to IgM than to IgG1and did not react to IgG2.IgM was, however, partly inactivated when heated at 60°C. in the presence of serum.


2020 ◽  
pp. 346-352
Author(s):  
Rinat Safiullin

Coccidiosis (isosporiasis, eimeriosis) and balantidiasis are most common among endamebas, which affect pigs of different age but they have the greatest negative effect on young animals. The work was carried out in a sow house at a pig complex in the Moscow Region. The sow house was divided into four sectors with 40 sows each. Complex preparation Kenocox 4% and Emeriocide 5% at a recommended dose and exposure were used for disinfestation during the preparation of the sow house in sectors 1 and 2. The recommended dose of 4% hot sodium hydroxide solution (basic version) was used for disinvasion of sectors 3 and 4. Piglets were taken from the mother at the age of 23 days at this farm. Piglets from sectors 1 and 2 were prescribed Toltrazuril 5% at a dose of the active substance of 30 mg / kg of the body weight after farrowing on the 3rd to 5th days of age as a preventive course. Piglets from sectors 3 and 4 served as a control and were prescribed physiological solution at a single dose of 1 ml orally. The combined use of drugs against the exogenous and endogenous stages of Coccidia significantly improved the level of biological protection of the sow house, which had a definite effect on production and economic results.


2019 ◽  
Vol 13 (2) ◽  
pp. 10-16
Author(s):  
Haitham Ahmed ◽  
Tagreed A. Al-Sadoon ◽  
Khudhair A. Khudhair

Objective: To investigate the influence of obesity on disease activity in rheumatoid arthritis patients and to determine a probable connection with the acute phase response.                                          Materials and methods: The recruited patients satisfied the criteria from the American College of Rheumatology (ACR). To evaluate the body mass index (BMI), anthropometric tests were carried out at the Rheumatology Department at Baquba Teaching Hospital, which has a consultation unit. The serum levels of anti-cyclic citrullinated peptide antibodies (anti-CCP) were measured from blood samples taken through the particle-enhanced (latex) immunonephelometry assays on the genius analyser (CO, Ltd. China) and test kits from IMTEC-CCP-Antibodies. RF screen and serological tests (latex) were carried out to determine the C-reactive protein (CRP), measure Hb and the total WBCs count, the erythrocyte sedimentation rate (ESR) was also carried out.                                                                                                                                                                        Results: The current study findings from the sample of RA patients showed that the proportion of patients falling into the overweight classification (BMI 25-29) was 80.6% while the obese classification (BMI 30-35) was 33.33%. Among the RF and ACCP-positive cases, a marginally stronger relationship between the development of RA and the history of obesity was found. Additionally, a significant correlation between acute phase response and free mass was found in RA patients (anti-CCP p-value≤ 0.00021 ESR p≤ 0.00072 Hb p≤ 0.00054, and W.B.C p =≤ 0.000.94, CRP p≤1).                                                                                                     Conclusion: The present study’s findings show an elevated prevalence of high body mass among the RA patients. Furthermore, a linear association existed between the fat free mass and the acute phase response.


2010 ◽  
Vol 7 (2) ◽  
pp. 901-909
Author(s):  
Baghdad Science Journal

Five serological methods for detection of Brucella were compaired in this study, Four of the methods are commonely used in the detections:- 1-Rose-Bengal: as primary screening test which depends on detecting antibodies in the blood serum. 2-IFAT: which detects IgG and IgM antibodies in the serum. 3-ELISA test: which detects IgG antibodies in the serum. 4-2ME test: which detects IgG antibodies The fifth methods. It was developed by a reasercher in one of the health centers in Baghdad. It was given the name of spot Immune Assay (SIA). Results declares that among (100) samples of patients blood, 76, 49, 49, 37, and 28. samples were positive to Rose Bengal, ELISA, SIA, 2ME and IFAT tests, respectively. When efficiency, sensitivity and specificity of the serological methods were compaired, the Following results were obtained: a) ELISA and SIA were superiors among the other confirming methods (2ME and IFAT) in detecting the highest cases (49 cases); 46 of them were from the (76) cases positive to Rose Bengal The confirmatory test 2ME was not efficient in detecting low concentrations of IgG antibodies when less than half (37) of the total positive cases (76) were detected by this test. b) IFAT test was the least efficient confirmatory test among all other test. c) As a new confirmatory test, SIA proved to be an efficient and serological test for Brucella detection in comparison with other tests. It is an easy to use test, rapid and could be performed without need to the expensive equipment .


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