The relationship between serum antibody titres and protection from foot and mouth disease in pigs after oil emulsion vaccination

1984 ◽  
Vol 12 (4) ◽  
pp. 379-389 ◽  
Author(s):  
Leonard Black ◽  
Michael J. Francis ◽  
Mark M. Rweyemamu ◽  
Osamura Umehara ◽  
Armin Boge
Keyword(s):  
Serum Antibody ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Oil Emulsion ◽  
Foot And Mouth ◽  
Antibody Titres ◽  
The Relationship

scholarly journals The effect of vaccination regimen on the transfer of foot and mouth disease antibodies from the sow to her piglets

1984 ◽  
Vol 93 (1) ◽  
pp. 123-131 ◽  
Author(s):  
M. J. Francis ◽  
L. Black
Keyword(s):  
Neutralizing Antibodies ◽  
Foot And Mouth Disease ◽  
Neutralizing Antibody ◽  
Mouth Disease ◽  
Oil Emulsion ◽  
Fmd Virus ◽  
Significant Difference ◽  
Foot And Mouth ◽  
Antibody Titres ◽  
Antibody Class

SUMMARYFour groups of pregnant sows were inoculated with type O1 foot and mouth disease (FMD) oil emulsion vaccine at various times before farrowing and samples of the sow's serum, colostrum and milk, and piglet's serum, collected during the first week after farrowing, were analysed for FMD virus neutralizing activity.No FMD neutralizing antibodies were detectable in the piglets serum at birth but they were present 1·5 h after suckling and peak titres were reached 1–3 days later. There was no significant difference between the antibody titres of colostrum samples collected from different teats at farrowing. However, similar samples collected 3 days later showed significant (P < 0·005) fore to hind variation. The principal FMD virus neutralizing antibody class present in the sow's serum at farrowing and in their 3-day-old piglets was governed by the inoculation schedule employed. When the last vaccinations were given ≃ 30 days before farrowing (dbf) the predominant FMD virus neutralizing class was IgG. However, when the sows were vaccinated only ≃ 12 dbf the predominant class was IgM. A significant correlation was observed between the sow's serum titres and colostrum titres at farrowing (r = 0·90), and also between sows colostrum titres at farrowing and their 3-day-old piglets serum titres (r = 0·99).

scholarly journals Humoral response of pregnant sows to foot and mouth disease vaccination

1986 ◽  
Vol 96 (3) ◽  
pp. 501-511 ◽  
Author(s):  
M. J. Francis ◽  
L. Black
Keyword(s):  
Foot And Mouth Disease ◽  
Humoral Response ◽  
Neutralizing Antibody ◽  
Mouth Disease ◽  
Igg Antibody ◽  
Oil Emulsion ◽  
Foot And Mouth ◽  
Antibody Titres ◽  
Iga Response ◽  
One Year

SUMMARYFour groups of sows were inoculated, either once or twice, with O1BFS 1860 foot and mouth disease oil-emulsion vaccine during pregnancy and samples of serum. for analysis, were collected at intervals for > 300 days.The pregnant sows responded well to vaccination regardless of their state of gestation. Single vaccination produced protective levels of antibody (> 1·53 log10SN50) in 3 out of 4 sows while double vaccination produced protective levels in all 6 sows tested. Anti-FMD IgM antibodies could be detected for 40–60 days after vaccination or revaccination. Anti-FMD IgG antibodies appeared within 10 days of vaccination and persisted, in each sow, for the duration of the study. The anti-FMD IgA response observed was less easy to characterize due to significant animal to animal variation. Although there was no evidence of a fall in the neutralizing antibody titres over one year post vaccination the anti-FMD IgG antibody population did show signs of a change in its heterogenity and avidity.

scholarly journals The HSP70-fused foot-and-mouth disease epitope elicits cellular and humoral immunity and drives broad-spectrum protective efficacy

npj Vaccines ◽  
2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Hyundong Jo ◽  
Bong Yoon Kim ◽  
So Hui Park ◽  
Hyun Mi Kim ◽  
Sung Ho Shin ◽  
...  
Keyword(s):  
Humoral Immunity ◽  
Broad Spectrum ◽  
Protective Efficacy ◽  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Host Defenses ◽  
Vaccination Site ◽  
Oil Emulsion ◽  
Foot And Mouth ◽  
Cellular And Humoral Immunity

AbstractCurrent foot-and-mouth disease (FMD) vaccines have significant limitations, including side effects due to oil emulsions at the vaccination site, a narrow spectrum of protective efficacy, and incomplete host defenses mediated by humoral immunity alone. To overcome these limitations, new FMD vaccines must ensure improved safety with non-oil-based adjuvants, a broad spectrum of host defenses within/between serotypes, and the simultaneous induction of cellular and humoral immunity. We designed a novel, immune-potent, recombinant protein rpHSP70-AD that induces robust cellular immunity and elicits a broad spectrum of host defenses against FMD virus (FMDV) infections. We demonstrated that an oil emulsion-free vaccine containing rpHSP70-AD mediates early, mid-term, and long-term immunity and drives potent host protection against FMDV type O and A, suggesting its potential as an FMD vaccine adjuvant in mice and pigs. These results suggest a key strategy for establishing next-generation FMD vaccines, including novel adjuvants.

scholarly journals Potential allergens in oil emulsion foot-and-mouth disease vaccines for pigs

1988 ◽  
Vol 101 (2) ◽  
pp. 477-480 ◽  
Author(s):  
L. Black ◽  
M. J Francis
Keyword(s):  
Foot And Mouth Disease ◽  
Mouth Disease ◽  
Oil Emulsion ◽  
Foot And Mouth

Reactions so far reported after the use of oil emulsion (OE) foot-and-mouth disease (FMD) vaccines in pigs have been infrequent and quick to resolve themselves. Although tentatively ascribed to anaphylaxis, these reactions have received little attention and their mechanism of causation has not been established conclusively.

scholarly journals The effect of temperature on childhood hand, foot and mouth disease in Guangdong Province, China, 2010-2013: A multicity study

2019 ◽  
Author(s):  
Zece Xu ◽  
Wenqi Hu ◽  
Kedi Jiao ◽  
Ci Ren ◽  
Baofa Jiang ◽  
...  
Keyword(s):  
Local Governments ◽  
Meta Analysis ◽  
Foot And Mouth Disease ◽  
Public Health Problem ◽  
Guangdong Province ◽  
Mouth Disease ◽  
Effect Of Temperature ◽  
Non Linear ◽  
Foot And Mouth ◽  
The Relationship

Abstract Background Hand, foot and mouth disease (HFMD) is a serious infectious disease, which has become a public health problem. Previous studies have shown that temperature may influence the incidence of HFMD, but most only focus on single city and the results are highly heterogeneous. Therefore, a multicity study was conducted to explore the association between temperature and HFMD in different cities and search for modifiers that influence the heterogeneity. Methods We collected daily cases of childhood HFMD (aged 0-5 years) and meteorological factors of 21 cities in Guangdong Province in the period of 2010-2013. Distributed lag non-linear model (DLNM) with quasi-Poisson was adopted to quantify the effects of temperature on HFMD in 21 cities. Then the effects of each city were pooled by multivariate meta-analysis to obtain the heterogeneity among 21 cities. Potential city-level factors were included in meta-regression to explore effect modifiers. Results A total of 1,048,574 childhood cases were included in this study. There was a great correlation between daily childhood HFMD cases and temperature in each city, which was non-linear and lagged. High heterogeneity was showed in the associations between temperature and HFMD in 21 cities. The pooled temperature-HFMD association was peaking at the 79th percentile of temperature with relative risk (RR) of 2.474(95%CI: 2.065-2.965) as compared to the median temperature. Latitude was the main modifier for reducing the heterogeneity to 69.28% revealed by meta-analysis. Conclusions There was a strong non-linear and lagged correlation between temperature and HFMD. Latitude was strongly associated with the relationship between temperature and HFMD. Meanwhile, it had an effect on modifying the relationship. These findings can conducive to local governments developing corresponding preventive measures.

scholarly journals Enzyme-linked immunosorbent assay (ELISA) for the detection of antibodies against foot-and-mouth disease virus: III. Evaluation of antibodies after infection and vaccination

1987 ◽  
Vol 99 (3) ◽  
pp. 733-744 ◽  
Author(s):  
C. Hamblin ◽  
R. P. Kitching ◽  
A. I. Donaldson ◽  
J. R. Crowther ◽  
I. T. R. Barnett
Keyword(s):  
Disease Virus ◽  
Immunosorbent Assay ◽  
Serum Antibody ◽  
Foot And Mouth Disease ◽  
Immunological Response ◽  
Mouth Disease ◽  
Enzyme Linked Immunosorbent Assay ◽  
Mouth Disease Virus ◽  
Foot And Mouth ◽  
Antibody Levels

SUMMARYInvestigations using a liquid-phase blocking sandwich enzyme-linked immunosorbent assay (ELISA) for the measurement of antibodies against foot-and-mouth disease virus (FMDV) in sera from sheep and from cattle are reported, and results compared with those obtained by virus neutralization (VN) tests.Serum antibody titres in sheep after primary vaccination and in cattle challenged with a natural aerosol after vaccination were similar by ELISA and VN. However, the antibody levels detected in sera of cattle during early infection and of vaccinated cattle after intradermolingual challenge were clearly greater by ELISA than by VN.The ELISA titres in cattle sera following synthetic peptide vaccination indicated some relationship to protection and were clearly different from those recorded by VN. On the other hand, the antibody levels following conventional vaccination showed that ELISA and VN titres in cattle sera were related to protection. Although there was a good agreement between the ELISA antibody titre and protection for the four vaccines used, by VN the titre which afforded protection varied depending on the vaccine used.The ELISA was considered therefore to be more reliable than the VN and may prove useful for evaluating the immunological response of animals following infection and following vaccination.

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