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Original Article 


Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves

Mahmoud D. Darwish, Mahmoud M. Abotaleb*, Sahar M. Saber, Nermeen G. Shafik.


Abstract
Foot and mouth disease (FMD) is a highly infectious and economically devastating disease of livestock. The vaccination is used for prevention of FMDV infection, while the evaluation of FMDV vaccine is mandatory to approve the efficacy of the vaccine but it consumed time and animals. This work, aimed to find the correlation between serum neutralization test (SNT) and challenge test by using FMDV serotype O (O/EGY/4/2012). Seventeen calves (6 months of age) were tested by SNT to be confirming their freedom from antibodies against serotype O. The calves were allotted into four groups. The first group (5 calves) was inoculated with field dose (1X) of a local inactivated FMDV vaccine (contain O/EGY/4/2012), the 2nd group (5 calves) was inoculated with half dose (1/2 X) of the same vaccine and the 3rd group (5 calves) was inoculated with one quarter dose (1/4 X) of the same previous vaccine, while the 4th group (2 calves) was kept as control. The sera were collected from group1, 2 and 3 at the 0, 14 and 28th day post vaccination. SNT was carried out against FMDV serotype O and the challenge test was carried out by inoculating all animals with 0.3 ml 104 BID50 (bovine infectious doses) of virulent FMDV type O. It was found that the SNT result after 28 days post vaccination for group1, group2 and group3 were 2.28, 1.74 and 0.96 (log10) TCID50/ml respectively while the protection percentage were 100%, 80% and 60% respectively. The recorded results reflect the correlation between serum neutralizing antibody titre and protective percentage in vaccinated calves which could be useful as alternative to challenge test in FMDV vaccine evaluation to minimize the cost of experimental animals use and suggested hazard.

Key words: Foot and mouth disease, FMDV evaluation, serotypes O, SNT and challenge test.


 
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How to Cite this Article
Pubmed Style

Darwish MD, Abotaleb MM, Saber SM, Shafik NG. Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves. AJVS. 2018; 57(1): 135-139. doi:10.5455/ajvs.283582

Web Style

Darwish MD, Abotaleb MM, Saber SM, Shafik NG. Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves. https://www.alexjvs.com/?mno=283582 [Access: March 28, 2025]. doi:10.5455/ajvs.283582

AMA (American Medical Association) Style

Darwish MD, Abotaleb MM, Saber SM, Shafik NG. Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves. AJVS. 2018; 57(1): 135-139. doi:10.5455/ajvs.283582


Vancouver/ICMJE Style

Darwish MD, Abotaleb MM, Saber SM, Shafik NG. Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves. AJVS. (2018), [cited March 28, 2025]; 57(1): 135-139. doi:10.5455/ajvs.283582


Harvard Style

Darwish, M. D., Abotaleb, . M. M., Saber, . S. M. & Shafik, . N. G. (2018) Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves. AJVS, 57 (1), 135-139. doi:10.5455/ajvs.283582


Turabian Style

Darwish, Mahmoud D., Mahmoud M. Abotaleb, Sahar M. Saber, and Nermeen G. Shafik. 2018. Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves. Alexandria Journal of Veterinary Sciences, 57 (1), 135-139. doi:10.5455/ajvs.283582


Chicago Style

Darwish, Mahmoud D., Mahmoud M. Abotaleb, Sahar M. Saber, and Nermeen G. Shafik. "Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves." Alexandria Journal of Veterinary Sciences 57 (2018), 135-139. doi:10.5455/ajvs.283582


MLA (The Modern Language Association) Style

Darwish, Mahmoud D., Mahmoud M. Abotaleb, Sahar M. Saber, and Nermeen G. Shafik. "Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves." Alexandria Journal of Veterinary Sciences 57.1 (2018), 135-139. Print. doi:10.5455/ajvs.283582


APA (American Psychological Association) Style

Darwish, M. D., Abotaleb, . M. M., Saber, . S. M. & Shafik, . N. G. (2018) Study on Real Correlation Between Foot And Mouth Disease Virus, Serotype (O) Neutralizing Antibody Titers And Protection Percentage In Vaccinated Calves. Alexandria Journal of Veterinary Sciences, 57 (1), 135-139. doi:10.5455/ajvs.283582




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    The Alexandria Journal of Veterinary Sciences (AJVS) Official Journal of Faculty of Veterinary Medicine, Alexandria University   ISSN: 1110 ... Read more.



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