High Efficiency of Low Dose Preparations of an Inactivated Lumpy Skin Disease Virus Vaccine Candidate

Capripox virus-induced diseases are commonly described as the most serious poxvirus diseases of production animals, as they have a significant impact on national and global economies. Therefore, they are classified as notifiable diseases under the guidelines of the World Organization for Animal Heal...

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Main Authors: Janika Wolff, Martin Beer, Bernd Hoffmann
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Vaccines
Subjects:
Online Access:https://www.mdpi.com/2076-393X/10/7/1029
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author Janika Wolff
Martin Beer
Bernd Hoffmann
author_facet Janika Wolff
Martin Beer
Bernd Hoffmann
author_sort Janika Wolff
collection DOAJ
description Capripox virus-induced diseases are commonly described as the most serious poxvirus diseases of production animals, as they have a significant impact on national and global economies. Therefore, they are classified as notifiable diseases under the guidelines of the World Organization for Animal Health (OIE). Controlling lumpy skin disease viral infections is based on early detection, slaughter of affected herds, and ring vaccinations. Until now, only live attenuated vaccines have been commercially available, which often induce adverse effects in vaccinated animals. Furthermore, their application leads to the loss of the “disease-free” status of the respective country. For these reasons, inactivated vaccines have increasingly generated interest. Since 2016, experimental studies have been published showing the high efficacy of inactivated capripox virus vaccines. In the present study, we examined the minimum protective dose of a BEI-inactivated LSDV-Serbia field strain adjuvanted with a low-molecular-weight copolymer adjuvant. Unexpectedly, even the lowest dose tested, with a virus titer of 10<sup>4</sup> CCID50 before inactivation, was able to provide complete clinical protection in all vaccinated cattle. Moreover, none of the vaccinated cattle showed viremia or viral shedding, indicating the high efficacy of the prototype vaccine even with a relatively low antigen amount.
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spelling doaj.art-8316bb386805438ebf204af3b4f7bdf62023-11-30T22:02:33ZengMDPI AGVaccines2076-393X2022-06-01107102910.3390/vaccines10071029High Efficiency of Low Dose Preparations of an Inactivated Lumpy Skin Disease Virus Vaccine CandidateJanika Wolff0Martin Beer1Bernd Hoffmann2Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, GermanyInstitute of Diagnostic Virology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, GermanyInstitute of Diagnostic Virology, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, D-17493 Greifswald-Insel Riems, GermanyCapripox virus-induced diseases are commonly described as the most serious poxvirus diseases of production animals, as they have a significant impact on national and global economies. Therefore, they are classified as notifiable diseases under the guidelines of the World Organization for Animal Health (OIE). Controlling lumpy skin disease viral infections is based on early detection, slaughter of affected herds, and ring vaccinations. Until now, only live attenuated vaccines have been commercially available, which often induce adverse effects in vaccinated animals. Furthermore, their application leads to the loss of the “disease-free” status of the respective country. For these reasons, inactivated vaccines have increasingly generated interest. Since 2016, experimental studies have been published showing the high efficacy of inactivated capripox virus vaccines. In the present study, we examined the minimum protective dose of a BEI-inactivated LSDV-Serbia field strain adjuvanted with a low-molecular-weight copolymer adjuvant. Unexpectedly, even the lowest dose tested, with a virus titer of 10<sup>4</sup> CCID50 before inactivation, was able to provide complete clinical protection in all vaccinated cattle. Moreover, none of the vaccinated cattle showed viremia or viral shedding, indicating the high efficacy of the prototype vaccine even with a relatively low antigen amount.https://www.mdpi.com/2076-393X/10/7/1029capripoxlumpy skin disease virusLSDVinactivated vaccineminimum protective dose
spellingShingle Janika Wolff
Martin Beer
Bernd Hoffmann
High Efficiency of Low Dose Preparations of an Inactivated Lumpy Skin Disease Virus Vaccine Candidate
Vaccines
capripox
lumpy skin disease virus
LSDV
inactivated vaccine
minimum protective dose
title High Efficiency of Low Dose Preparations of an Inactivated Lumpy Skin Disease Virus Vaccine Candidate
title_full High Efficiency of Low Dose Preparations of an Inactivated Lumpy Skin Disease Virus Vaccine Candidate
title_fullStr High Efficiency of Low Dose Preparations of an Inactivated Lumpy Skin Disease Virus Vaccine Candidate
title_full_unstemmed High Efficiency of Low Dose Preparations of an Inactivated Lumpy Skin Disease Virus Vaccine Candidate
title_short High Efficiency of Low Dose Preparations of an Inactivated Lumpy Skin Disease Virus Vaccine Candidate
title_sort high efficiency of low dose preparations of an inactivated lumpy skin disease virus vaccine candidate
topic capripox
lumpy skin disease virus
LSDV
inactivated vaccine
minimum protective dose
url https://www.mdpi.com/2076-393X/10/7/1029
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AT berndhoffmann highefficiencyoflowdosepreparationsofaninactivatedlumpyskindiseasevirusvaccinecandidate