scholarly journals Prevalence and Risk Factors of Foot and Mouth Disease Virus in Nineveh Province, Iraq

Author(s):  
Saadoon Abdul-Satar Salim ◽  
Al-Obaidi Qaes Talb ◽  
Albaroodi Safwan Yousif ◽  
Hasan Sadam Daher
2019 ◽  
Vol 171 ◽  
pp. 104766 ◽  
Author(s):  
Anna Munsey ◽  
Frank Norbert Mwiine ◽  
Sylvester Ochwo ◽  
Lauro Velazquez-Salinas ◽  
Zaheer Ahmed ◽  
...  

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Jean Claude Udahemuka ◽  
Gabriel Oluga Aboge ◽  
George Ogello Obiero ◽  
Phiyani Justice Lebea ◽  
Joshua Orungo Onono ◽  
...  

Abstract Background Identification of risk factors is crucial in Foot-and-mouth disease (FMD) control especially in endemic countries. In Rwanda, almost all outbreaks of Foot-and-Mouth Disease Virus (FMDV) have started in Eastern Rwanda. Identifying the risk factors in this area will support government control efforts. This study was carried out to identify and map different risk factors for the incursion, spread and persistence of FMDV in Eastern Rwanda. Questionnaires were administered during farm visits to establish risk factors for FMD outbreaks. Descriptive statistical measures were determined and odds ratios were calculated to determine the effects of risk factors on the occurrence of FMD. Quantum Geographic Information System (QGIS) was used to produce thematic maps on the proportion of putative risk factors for FMD per village. Results Based on farmers’ perceptions, 85.31% (with p < 0.01) experienced more outbreaks during the major dry season, a finding consistent with other reports in other parts of the world. Univariate analysis revealed that mixed farming (OR = 1.501, p = 0.163, CI = 95%), and natural breeding method (OR = 1.626; p = 0.21, CI = 95%) were associated with the occurrence of FMD indicating that the two risk factors could be responsible for FMD outbreaks in the farms. The occurrence of FMD in the farms was found to be significantly associated with lack of vaccination of calves younger than 12 months in herds (OR = 0.707; p = 0.046, CI = 95%). Conclusions This is the first study to describe risk factors for persistence of FMDV in livestock systems in Rwanda. However, further studies are required to understand the role of transboundary animal movements and genotypic profiles of circulating FMDV in farming systems in Rwanda.


2019 ◽  
Vol 6 (2) ◽  
pp. 95-108
Author(s):  
Sevidzem Silas Lendzele ◽  
Mamoudou Abdoulmoumini ◽  
Simon Dickmu ◽  
Alfons Renz ◽  
Acapovi-Yao Genevieve Lydie ◽  
...  

Author(s):  
S. S. Breese ◽  
H. L. Bachrach

Models for the structure of foot-and-mouth disease virus (FMDV) have been proposed from chemical and physical measurements (Brown, et al., 1970; Talbot and Brown, 1972; Strohmaier and Adam, 1976) and from rotational image-enhancement electron microscopy (Breese, et al., 1965). In this report we examine the surface structure of FMDV particles by high resolution electron microscopy and compare it with that of particles in which the outermost capsid protein VP3 (ca. 30, 000 daltons) has been split into smaller segments, two of which VP3a and VP3b have molecular weights of about 15, 000 daltons (Bachrach, et al., 1975).Highly purified and concentrated type A12, strain 119 FMDV (5 mg/ml) was prepared as previously described (Bachrach, et al., 1964) and stored at 4°C in 0. 2 M KC1-0. 5 M potassium phosphate buffer at pH 7. 5. For electron microscopy, 1. 0 ml samples of purified virus and trypsin-treated virus were dialyzed at 4°C against 0. 2 M NH4OAC at pH 7. 3, deposited onto carbonized formvar-coated copper screens and stained with phosphotungstic acid, pH 7. 3.


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