The study of insects of the order Diptera for the presence of the genetic material of the lumpy skin disease virus by a polymerase chain reaction

2020 ◽  
Vol 23 (7) ◽  
pp. 24-31
Author(s):  
A.N. Chichkin ◽  
◽  
L.P. Padilo ◽  
Yu.V. Saltykov ◽  
D.V. Podshibyakin ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Disease Virus ◽  
Skin Disease ◽  
Genetic Material ◽  
Chain Reaction ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus ◽  
Polymerase Chain

scholarly journals Molecular detection of lumpy skin disease virus in cattle by polymerase chain reaction in Iraq

2016 ◽  
Vol 40 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Khitam Mahdi Mhemid
Keyword(s):  
Polymerase Chain Reaction ◽  
Disease Virus ◽  
Skin Disease ◽  
Age Groups ◽  
Conventional Polymerase Chain Reaction ◽  
Chain Reaction ◽  
Lumpy Skin Disease ◽  
Blood Samples ◽  
Lumpy Skin Disease Virus ◽  
Polymerase Chain

     This study is conducted to detect lumpy skin disease virus in Babylon, Al-Qadysia and Al-Muthana governorate during autumn 2014 using conventional polymerase chain reaction. A total of 150 specimens: 50 whole blood samples, 50 skin nodular biopsies and 50 tick samples were collected from infected animals of different breeds, genders and ages during lumpy skin disease outbreak. The results revealed that 104 cases (69.33%) were positive for lumpy skin disease virus by using polymerase chain reaction, with significant (P<0.05) differences between positive and negative cases. Out of 50 blood samples, 22 cases (44%) were positive for lumpy skin disease virus. The nodular skin samples collected from slaughtered animals showed 36 positive cases (72%), whereas 46 tick samples (92%) were positive for the disease, with significant (P<0.05) difference among them. According to gender, the finding showed significant results of lumpy skin disease in females (78.78%). It was recorded that higher percentage of positive cases was found in Friesian cattle (100%), crossbreed (73.58%) while native breed was (50.76%) with significant (P<0.05) difference among them. Regarding age groups, the results showed that all ages were susceptible to lumpy skin disease and significantly not different.

scholarly journals Comparative Evaluation of Lumpy Skin Disease Virus-Based Live Attenuated Vaccines

Vaccines ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 473
Author(s):  
Andy Haegeman ◽  
Ilse De Leeuw ◽  
Laurent Mostin ◽  
Willem Van Campe ◽  
Laetitia Aerts ◽  
...  
Keyword(s):  
Disease Virus ◽  
Skin Disease ◽  
Vaccination Campaign ◽  
Ease Of Use ◽  
Vaccine Failure ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus ◽  
The Balkans ◽  
The Past ◽  
Preventative Strategy

Vaccines form the cornerstone of any control, eradication and preventative strategy and this is no different for lumpy skin disease. However, the usefulness of a vaccine is determined by a multiplicity of factors which include stability, efficiency, safety and ease of use, to name a few. Although the vaccination campaign in the Balkans against lumpy skin disease virus (LSDV) was successful and has been implemented with success in the past in other countries, data of vaccine failure have also been reported. It was therefore the purpose of this study to compare five homologous live attenuated LSDV vaccines (LSDV LAV) in a standardized setting. All five LSDV LAVs studied were able to protect against a challenge with virulent LSDV. Aside from small differences in serological responses, important differences were seen in side effects such as a local reaction and a Neethling response upon vaccination between the analyzed vaccines. These observations can have important implications in the applicability in the field for some of these LSDV LAVs.

scholarly journals Production of small ruminant morbillivirus, rift valley fever virus and lumpy skin disease virus in CelCradle™ -500A bioreactors

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Halima Rhazi ◽  
Najete Safini ◽  
Karima Mikou ◽  
Meryeme Alhyane ◽  
Khalid Omari Tadlaoui ◽  
...  
Keyword(s):  
Disease Virus ◽  
Skin Disease ◽  
Rift Valley ◽  
Rift Valley Fever ◽  
Rift Valley Fever Virus ◽  
Fever Virus ◽  
Valley Fever ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus ◽  
Cell Factories

Abstract Background Animal vaccination is an important way to stop the spread of diseases causing immense damage to livestock and economic losses and the potential transmission to humans. Therefore effective method for vaccine production using simple and inexpensive bioprocessing solutions is very essential. Conventional culture systems currently in use, tend to be uneconomic in terms of labor and time involved. Besides, they offer a limited surface area for growth of cells. In this study, the CelCradle™-500A was evaluated as an alternative to replace conventional culture systems in use such as Cell factories for the production of viral vaccines against small ruminant morbillivirus (PPR), rift valley fever virus (RVF) and lumpy skin disease virus (LSD). Results Two types of cells Vero and primary Lamb Testis cells were used to produce these viruses. The study was done in 2 phases as a) optimization of cell growth and b) virus cultivation. Vero cells could be grown to significantly higher cell densities of 3.04 × 109 using the CelCradle™-500A with a shorter doubling time as compared to 9.45 × 108 cells in Cell factories. This represents a 19 fold increase in cell numbers as compared to seeding vs only 3.7 fold in Cell factories. LT cells achieved modestly higher cell densities of 6.7 × 108 as compared to 6.3 × 108 in Cell factories. The fold change in densities for these cells was 3 fold in the CelCradle™-500A vs 2.5 fold in Cell factories. The titers in the conventional system and the bioreactor were not significantly different. However, the Cell-specific virus yield for rift valley fever virus and lumpy skin disease virus are higher (25 virions/cell for rift valley fever virus, and 21.9 virions/cell for lumpy skin disease virus versus 19.9 virions/cell for rift valley fever virus and 10 virions/cell for lumpy skin disease virus). Conclusions This work represents a novel study for primary lamb testis cell culture in CellCradle™-500A bioreactors. In addition, on account of the high cell densities obtained and the linear scalability the titers could be further optimized using other culture process such us perfusion.

Molecular characterization of lumpy skin disease virus in Iran (2014–2018)

2021 ◽  
Author(s):  
Zeinab Hedayati ◽  
Hamid Reza Varshovi ◽  
Ali Mohammadi ◽  
Mohammad Tabatabaei
Keyword(s):  
Molecular Characterization ◽  
Disease Virus ◽  
Skin Disease ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus

scholarly journals Psittacine beak and feather disease virus in budgerigars and ring-neck parakeets in South Africa

2004 ◽  
Vol 71 (1) ◽  
Author(s):  
J. Albertyn ◽  
K.M. Tajbhai ◽  
R.R. Bragg
Keyword(s):  
South Africa ◽  
Polymerase Chain Reaction ◽  
Genetic Variation ◽  
Disease Virus ◽  
Common Disease ◽  
Sample Collection ◽  
Chain Reaction ◽  
Polymerase Chain ◽  
Feather Disease Virus ◽  
Viral Isolates

Psittacine beak and feather disease (PBFD) is a common disease of the psittacine species and is caused by the psittacine beak and feather disease virus (PBFDV). In this study the occurrence of the disease in ring-neck parakeets and budgerigars in South Africa suffering from feathering problems, using polymerase chain reaction as a diagnostic test was investigated. The genetic variation between viral isolates was also studied. Results indicate that PBFDV can be attributed to being the cause of feathering problems in some of the ring-neck parakeets and budgerigars in South Africa. Genetic variation of isolates occurs between species and individuals. A cheap and easy to use method of blood sample collection on filter paper for diagnostic purposes was also evaluated. It proved to be less stressful to the birds and did not inhibit further processes.

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