scholarly journals A novel strain of lumpy skin disease virus causes clinical disease in cattle in Hong Kong

2021 ◽  
Author(s):  
John Flannery ◽  
Barbara Shih ◽  
Ismar R. Haga ◽  
Martin Ashby ◽  
Amanda Corla ◽  
...  
Keyword(s):  
Hong Kong ◽  
Disease Virus ◽  
Skin Disease ◽  
Clinical Disease ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus

scholarly journals Mechanical transmission of lumpy skin disease virus by Aedes aegypti (Diptera: Culicidae)

2001 ◽  
Vol 126 (2) ◽  
pp. 317-321 ◽  
Author(s):  
C. M. CHIHOTA ◽  
L. F. RENNIE ◽  
R. P. KITCHING ◽  
P. S. MELLOR
Keyword(s):  
Aedes Aegypti ◽  
Disease Virus ◽  
Skin Disease ◽  
Mosquito Species ◽  
Clinical Disease ◽  
Mechanical Transmission ◽  
Infected Cattle ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus

Aedes aegypti female mosquitoes are capable of the mechanical transmission of lumpy skin disease virus (LSDV) from infected to susceptible cattle. Mosquitoes that had fed upon lesions of LSDV-infected cattle were able to transmit virus to susceptible cattle over a period of 2–6 days post-infective feeding. Virus was isolated from the recipient animals in 5 out of 7 cases. The clinical disease recorded in the animals exposed to infected mosquitoes was generally of a mild nature, with only one case being moderate. LSDV has long been suspected to be insect transmitted, but these findings are the first to demonstrate this unequivocally, and they suggest that mosquito species are competent vectors.

scholarly journals A novel strain of lumpy skin disease virus causes clinical disease in cattle in Hong Kong

2021 ◽  
Author(s):  
John Flannery ◽  
Barbara Shih ◽  
Ismar R Haga ◽  
Martin Ashby ◽  
Amanda Corla ◽  
...  
Keyword(s):  
Hong Kong ◽  
Middle East ◽  
Disease Virus ◽  
Skin Disease ◽  
Quantitative Polymerase Chain Reaction ◽  
Disease Outbreaks ◽  
Reference Laboratory ◽  
Variable Regions ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus

Lumpy skin disease virus (LSDV) is an emerging poxviral pathogen of cattle that is currently spreading throughout Asia. The disease situation is of high importance for farmers and policy makers in Asia. In October 2020, feral cattle in Hong Kong developed multifocal cutaneous nodules consistent with lumpy skin disease (LSD). Gross and histological pathology further supported the diagnosis and samples were sent to the OIE Reference Laboratory at The Pirbright Institute for confirmatory testing. LSDV was detected using quantitative polymerase chain reaction (qPCR) and additional molecular analyses. This is the first report of LSD in Hong Kong. Whole genome sequencing (WGS) of the strain LSDV/HongKong/2020 and phylogenetic analysis were carried out in order to identify connections to previous outbreaks of LSD, and better understand the drivers of LSDV emergence. Analysis of the 90 core poxvirus genes revealed LSDV/HongKong/2020 was a novel strain most closely related to the live-attenuated Neethling vaccine strains of LSDV and more distantly related to wildtype LSDV isolates from Africa, the Middle East and Europe. Analysis of the more variable regions located towards the termini of the poxvirus genome revealed genes in LSDV/HongKong/2020 with different patterns of grouping when compared to previously published wildtype and vaccine strains of LSDV. This work reveals that the LSD outbreak in Hong Kong in 2020 was caused by a different strain of LSDV than the LSD epidemic in the Middle East and Europe in 2015-2018. The use of WGS is highly recommended when investigating LSDV disease outbreaks.

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 Cutaneous lymphoma in a cow - a case report

2019 ◽  
Vol 73 (1) ◽  
pp. 50-56
Author(s):  
Branislav Kureljusic ◽  
Slobodan Maksimovic ◽  
Slobodan Vujinovic ◽  
Bozidar Savic ◽  
Vesna Milicevic ◽  
...  
Keyword(s):  
Disease Virus ◽  
Skin Disease ◽  
Mononuclear Cells ◽  
Subcutaneous Tissue ◽  
Leukemia Virus ◽  
Surgical Excision ◽  
Cutaneous Lymphoma ◽  
Histopathological Analysis ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus

In this paper the case of a 2.5-year-old Simmental cow, with suspicion of lumpy skin disease in mid-2017 in Serbia will be presented. Clinical examination revealed numerous nodules of varied size from a few millimeters to approximately 10 centimeters disseminated predominantly on the skin of the udder and the perineum, some of which were coalescing and exulcerated. The general condition of the affected animal was unchanged. According to the results of laboratory analysis, the cow was negative for the presence of antibodies against the bovine leukemia virus, showed a negative reaction in tuberculinization and was vaccinated against lumpy skin disease virus. After the surgical excision of one skin node, the sample tested negative for the genome of lumpy skin disease virus. In order to establish the morphology of the skin lesion, a histopathological analysis was performed. Histopathological analysis showed the infiltration of the corium and subcutaneous tissue by numerous mononuclear cells showing cellular atypia. Suspicion of cutaneous lymphoma was established. Furthermore, the immunohistochemical examination confirmed that the infiltrate contained exclusively CD3-immunopositive cells, suggesting a T-cell origin nonepitheliotropic lymphoma.

scholarly journals Retention of Lumpy Skin Disease Virus in Stomoxys Spp (Stomoxys Calsitrans, Stomoxys Sitiens, Stomoxys Indica) following intrathoracic inoculation, Diptera: Muscidae

2020 ◽  
Author(s):  
Arman Issimov ◽  
Lespek Kutumbetov ◽  
Assylbek Zhanabayev ◽  
Nurlybay Kazhgaliyev ◽  
Birzhan Nurgaliyev ◽  
...  
Keyword(s):  
Disease Virus ◽  
Skin Disease ◽  
Virus Isolation ◽  
Emerging Disease ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus ◽  
Laboratory Conditions ◽  
Means Of Transmission ◽  
Intrathoracic Inoculation

AbstractLumpy skin disease (LSD) is an emerging disease in cattle in Kazakhstan and the means of transmission remains uncertain. In the current study, acquisition of Lumpy Skin Disease Virus (LSDV) by Stomoxys species following intrathoracic inoculation was demonstrated under laboratory conditions. Flies were injected with a virulent LSDV strain into the thorax region to bypass the midgut barrier. The fate of pathogen in the hemolymph of the flies was further examined using PCR and Virus isolation tests. LSDV was isolated from all three Stomoxys species immediately and up to 24h post intrathoracic inoculation while virus DNA was detectable up to 7d post intrathoracic inoculation.

scholarly journals A Phylogeny of Envelope protein like gene of Lumpy skin disease virus, Egypt, 2014

2018 ◽  
Vol 34 (3) ◽  
pp. 338-354
Author(s):  
G.HE.M El-kady. ◽  
G.F. El-Bagoury ◽  
E.M. El-Nahas ◽  
A.S. El-Habbaa
Keyword(s):  
Disease Virus ◽  
Skin Disease ◽  
Envelope Protein ◽  
Lumpy Skin Disease ◽  
Lumpy Skin Disease Virus
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