Enhancing lumpy skin disease control: Effective competitive and indirect ELISAs for serological surveillance

被引:0
作者
Baselli, Stefano [1 ]
Hoffmann, Bernd [2 ]
Milovanovic, Milovan [2 ]
Shtjefni, Valentin [3 ]
Ricchi, Matteo [1 ]
Sabino, Marcella [1 ]
Grazioli, Santina [1 ]
Brocchi, Emiliana [1 ]
Pezzoni, Giulia [1 ]
机构
[1] Ist Zooprofilatt Sperimentale Lombardia & Emilia R, Via Bianchi 9, I-24125 Brescia, Italy
[2] Fed Res Inst Anim Hlth, Inst Diagnost Virol, Friedrich Loeffler Inst, Sudufer 10, D-17493 Greifswald, Germany
[3] Food Safety & Vet Inst, Anim Hlth Dept, Aleksander Moisiu 82, Tirana 1005, Albania
关键词
Lumpy skin disease; Antibodies detection; Novel ELISAs; VNT; PROTEIN; ANTIBODIES;
D O I
10.1016/j.jviromet.2025.115108
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Lumpy skin disease (LSD), caused by the LSD virus (LSDV) from the Capripoxvirus genus, affects cattle, water buffalo, and wild bovines, leading to significant economic losses. Characterised by fever, skin nodules, and mucosal lesions, LSD raises global concerns due to vector-borne transmission. The World Organisation for Animal Health (WOAH) classifies LSD as a notifiable disease, emphasising the need for rapid diagnostic methods for timely disease confirmation and control. This study evaluates the performance of two previously developed ELISA tests - competitive and indirect. The validation involved 450 field sera from infected and vaccinated herds in Albania (collected in 2016, during the LSD outbreak), 332 sera from vaccinated cattle in Serbia (collected in 2017 from farms with no prior history of LSD detection), 90 sera from experimental infections at FriedrichLoeffler-Institut, and 412 field negative sera from a Capripox-free country. The comparison with the virus neutralisation test - the gold standard - demonstrated high specificity (>= 0.95) and significant sensitivity (0.87-0.94), with 8-9 % of sera showing discordant results. The results diverged more in sera from animals with a single vaccination or sampled five months post-vaccination, indicating reduced antibody detectability over time. The study confirms the ELISAs' efficacy for large-scale LSDV serological surveillance, highlighting their potential to provide a cost-effective and rapid solution for monitoring and controlling LSD in endemic regions.
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页数:7
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