ArticleTropical animal health and production2023
Seromolecular surveillance of rabbit haemorrhagic disease virus in Nigeria.
Article in Tropical animal health and production, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed, 1 citations in OpenAlex.
- Rabbit hemorrhagic disease virus 2, 2010-2023: a review of global detections and affected species.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2024Review
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Authors and funding
11 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Following the first 2020 rabbit haemorrhagic disease virus (RHDV) outbreak in Nigeria which caused massive mortalities in several rabbitries, there was a need to know the spread and strains circulating in the affected states. Over 100 rabbitries still existing post-RHDV outbreak in Ogun and Kwara States were investigated. A commercial enzyme-linked immunosorbent assay kit was used to screen for RHDV immunoglobulin G in 192 rabbit sera, while RHDV VP60 gene was amplified in RNA extracted from these sera and tissues (liver and/or spleen harvested from 37 carcasses necrotized) by reverse transcription-polymerase chain reaction (RT-PCR). Sequences obtained from the amplicons were subjected to phylogenetic analysis. The results revealed a seroprevalence of 82.3% (158/192). RHDV VP60 gene was detected in 15/17 (88.2%) and 2/20 (10.0%) carcasses from Ogun and Kwara States, respectively, while none of the sera was positive. Sequences of the two positive amplicons selected (one from each states) shared 98.95% nucleotide identity and belonged to RHDV 2/GI.2 strain. Also, nBLAST of these sequences revealed 98.43-99.55% homology with the prototype Nigerian RHDV strain RHDV/NGR/ILN/001 (MT996357.1). Furthermore, these strains clustered with this prototype and a German RHDV strain (LR899166.1). Pathologic lesions affecting the respiratory, cardiovascular, renal, lymphatic, and digestive systems were observed in necropsied carcasses. This study indicated that RHDV 2/GI.2 strain was the cause of 2020 RHD outbreak in Nigeria. Thus, while continuous public sensitization about RHD especially among rabbit farmers in Nigeria is important, efforts aimed at design and implementation of RHD vaccination policy, preferably using indigenous seed, should be expedited.
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