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Article ; Online: Infectious dose of Senecavirus A in market weight and neonatal pigs.

Buckley, Alexandra / Lager, Kelly

2022 Volume 17, Issue 4, Page(s) e0267145

Abstract: Foot-and-mouth disease virus (FMDV) is a picornavirus that produces a highly transmissible vesicular disease that can devastate meat and dairy production to such an extent that FMDV-free countries commit significant economic resources to maintain their ... ...

Abstract	Foot-and-mouth disease virus (FMDV) is a picornavirus that produces a highly transmissible vesicular disease that can devastate meat and dairy production to such an extent that FMDV-free countries commit significant economic resources to maintain their FMDV-free status. Senecavirus A (SVA), also a picornavirus, causes vesicular disease in swine that is indistinguishable from FMDV. Since 2015, SVA outbreaks have been reported around the world requiring FMDV-free countries to investigate these cases to rule out FMDV. Understanding the pathogenesis of the SVA and its ability to transmit to naïve populations is critical to formulating control and prevention measures, which could reduce FMDV investigations. The primary objective of this study was to determine the infectious dose of SVA in market weight and neonatal pigs. A 2011 SVA isolate was serially hundred-fold diluted to create four challenge inoculums ranging from 106.5 to 100.5 TCID50/ml. Four market weight pigs individually housed were intranasally inoculated with 5 mL of each dose (n = 16). Serial ten-fold dilutions were used to create 6 challenge inoculums ranging from 105.5 to 100.5 TCID50/ml for neonatal pigs. Again, four animals in individual housing were challenged orally with 2 mL of each dose (n = 24). Detection of SVA by PCR in collected samples and/or neutralizing antibody response was utilized to classify an animal as infected. The minimum infectious dose for this study in market weight animals was 1,260 TCID50/ml (103.1 TCID50/ml) and for neonates it was 316 TCID50/ml (102.5 TCID50/ml). Knowledge of the infectious dose of SVA can guide biosecurity and disinfection measures to control the spread of SVA.
MeSH term(s)	Animals ; Antibodies, Neutralizing ; Foot-and-Mouth Disease Virus ; Picornaviridae ; Swine ; Swine Diseases
Chemical Substances	Antibodies, Neutralizing
Language	English
Publishing date	2022-04-29
Publishing country	United States
Document type	Journal Article
ZDB-ID	2267670-3
ISSN	1932-6203 ; 1932-6203
ISSN (online)	1932-6203
ISSN	1932-6203
DOI	10.1371/journal.pone.0267145
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Efficacy of an inactivated Senecavirus A vaccine in weaned pigs and mature sows.

Buckley, Alexandra / Lager, Kelly

Vaccine

2022 Volume 40, Issue 12, Page(s) 1747–1754

Abstract: Senecavirus A (SVA), commonly known as Seneca Valley virus (SVV) is a causative agent for vesicular disease in swine. It has been found across the globe including the United States, Brazil, and China. Clinical disease caused by this virus is identical to ...

Abstract	Senecavirus A (SVA), commonly known as Seneca Valley virus (SVV) is a causative agent for vesicular disease in swine. It has been found across the globe including the United States, Brazil, and China. Clinical disease caused by this virus is identical to foot-and-mouth disease virus (FMDV). Since FMDV has the potential to cause severe economic consequences in FMDV-free countries, those countries are on high alert for signs of vesicles in swine and an investigation is performed to rule out the presence of FMDV if observed. In countries where SVA cases have continued to occur, investigations and testing can cause a burden on personnel and resources. The objectives of this study were to test the efficacy of a whole-virus inactivated SVA vaccine against challenge in nursery-aged pigs, mature sows, and to assess the protection of passive maternal immunity generated by immunized dams. Animals were given two doses of the vaccine intramuscularly three weeks apart and challenged intranasally two weeks after the second dose. Non-vaccinated animals challenged with SVA developed clinical signs of disease, replicated virus, and developed a neutralizing antibody response. Vaccinated animals had robust neutralizing titers after two doses; and after challenge, did not develop vesicular disease and had limited rectal shedding. Piglets suckling immunized dams and challenged with SVA at 3-6 days-of-age had neutralizing titers prior to challenge and did not replicate or shed virus. An efficacious vaccine could improve swine welfare and reduce the economic consequences of continued foreign animal disease investigations.
MeSH term(s)	Animals ; Antibodies, Viral ; Female ; Picornaviridae ; Picornaviridae Infections/veterinary ; Swine ; Swine Diseases/prevention & control ; Vaccines, Inactivated ; Viral Vaccines
Chemical Substances	Antibodies, Viral ; Vaccines, Inactivated ; Viral Vaccines
Language	English
Publishing date	2022-02-16
Publishing country	Netherlands
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
ZDB-ID	605674-x
ISSN	1873-2518 ; 0264-410X
ISSN (online)	1873-2518
ISSN	0264-410X
DOI	10.1016/j.vaccine.2022.02.018
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Article: Bacterin Vaccination Provides Insufficient Protection Against

Hau, Samantha J / Buckley, Alexandra / Brockmeier, Susan L

Frontiers in veterinary science

2022 Volume 9, Page(s) 827082

Abstract: Streptococcus ... ...

Abstract	Streptococcus equi
Language	English
Publishing date	2022-02-28
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2834243-4
ISSN	2297-1769
ISSN	2297-1769
DOI	10.3389/fvets.2022.827082
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Article: Efficacy of an inactivated Senecavirus A vaccine in weaned pigs and mature sows

Buckley, Alexandra / Lager, Kelly

Vaccine. 2022 Mar. 15, v. 40, no. 12

2022

Abstract	Senecavirus A (SVA), commonly known as Seneca Valley virus (SVV) is a causative agent for vesicular disease in swine. It has been found across the globe including the United States, Brazil, and China. Clinical disease caused by this virus is identical to foot-and-mouth disease virus (FMDV). Since FMDV has the potential to cause severe economic consequences in FMDV-free countries, those countries are on high alert for signs of vesicles in swine and an investigation is performed to rule out the presence of FMDV if observed. In countries where SVA cases have continued to occur, investigations and testing can cause a burden on personnel and resources. The objectives of this study were to test the efficacy of a whole-virus inactivated SVA vaccine against challenge in nursery-aged pigs, mature sows, and to assess the protection of passive maternal immunity generated by immunized dams. Animals were given two doses of the vaccine intramuscularly three weeks apart and challenged intranasally two weeks after the second dose. Non-vaccinated animals challenged with SVA developed clinical signs of disease, replicated virus, and developed a neutralizing antibody response. Vaccinated animals had robust neutralizing titers after two doses; and after challenge, did not develop vesicular disease and had limited rectal shedding. Piglets suckling immunized dams and challenged with SVA at 3–6 days-of-age had neutralizing titers prior to challenge and did not replicate or shed virus. An efficacious vaccine could improve swine welfare and reduce the economic consequences of continued foreign animal disease investigations.
Keywords	Foot-and-mouth disease virus ; Senecavirus A ; antibody formation ; etiological agents ; human resources ; maternal immunity ; transboundary animal diseases ; vaccines ; viruses ; Brazil ; China
Language	English
Dates of publication	2022-0315
Size	p. 1747-1754.
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	605674-x
ISSN	1873-2518 ; 0264-410X
ISSN (online)	1873-2518
ISSN	0264-410X
DOI	10.1016/j.vaccine.2022.02.018
Database	NAL-Catalogue (AGRICOLA)

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Zs.A 1930: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (1.OG) ab Jg. 2022: Lesesaal (EG)
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Article ; Online: Infectious dose of Senecavirus A in market weight and neonatal pigs.

Alexandra Buckley / Kelly Lager

PLoS ONE, Vol 17, Iss 4, p e

2022 Volume 0267145

Abstract	Foot-and-mouth disease virus (FMDV) is a picornavirus that produces a highly transmissible vesicular disease that can devastate meat and dairy production to such an extent that FMDV-free countries commit significant economic resources to maintain their FMDV-free status. Senecavirus A (SVA), also a picornavirus, causes vesicular disease in swine that is indistinguishable from FMDV. Since 2015, SVA outbreaks have been reported around the world requiring FMDV-free countries to investigate these cases to rule out FMDV. Understanding the pathogenesis of the SVA and its ability to transmit to naïve populations is critical to formulating control and prevention measures, which could reduce FMDV investigations. The primary objective of this study was to determine the infectious dose of SVA in market weight and neonatal pigs. A 2011 SVA isolate was serially hundred-fold diluted to create four challenge inoculums ranging from 106.5 to 100.5 TCID50/ml. Four market weight pigs individually housed were intranasally inoculated with 5 mL of each dose (n = 16). Serial ten-fold dilutions were used to create 6 challenge inoculums ranging from 105.5 to 100.5 TCID50/ml for neonatal pigs. Again, four animals in individual housing were challenged orally with 2 mL of each dose (n = 24). Detection of SVA by PCR in collected samples and/or neutralizing antibody response was utilized to classify an animal as infected. The minimum infectious dose for this study in market weight animals was 1,260 TCID50/ml (103.1 TCID50/ml) and for neonates it was 316 TCID50/ml (102.5 TCID50/ml). Knowledge of the infectious dose of SVA can guide biosecurity and disinfection measures to control the spread of SVA.
Keywords	Medicine ; R ; Science ; Q
Subject code	630
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Comment on "A Permutation Test-Based Approach to Strengthening Inference on the Effects of Environmental Mixtures: Comparison between Single-Index Analytic Methods".

Keil, Alexander P / Buckley, Jessie P / O'Brien, Katie M / Ferguson, Kelly K / White, Alexandra J

Environmental health perspectives

2023 Volume 131, Issue 1, Page(s) 18001

MeSH term(s)	Brain ; Computer Simulation
Language	English
Publishing date	2023-01-03
Publishing country	United States
Document type	Letter ; Research Support, N.I.H., Extramural ; Research Support, N.I.H., Intramural ; Comment
ZDB-ID	195189-0
ISSN	1552-9924 ; 0091-6765 ; 1078-0475
ISSN (online)	1552-9924
ISSN	0091-6765 ; 1078-0475
DOI	10.1289/EHP12404
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Zs.B 1360: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular ab Jg. 2022: Lesesaal (EG)
Zs.MO 379: Show issues

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Article ; Online: Experimental Senecavirus A Infection of Bovine Cell Lines and Colostrum-Deprived Calves.

Buckley, Alexandra / Crawford, Lauren / Hoffman, Kyle / Falkenberg, Shollie

Viruses

2022 Volume 14, Issue 12

Abstract: Senecavirus A (SVA) is a causative agent for vesicular disease in swine, which is clinically indistinguishable from other vesicular diseases of swine including foot-and-mouth disease (FMD). Recently, it was reported that buffalo in Guangdong, China were ... ...

Abstract	Senecavirus A (SVA) is a causative agent for vesicular disease in swine, which is clinically indistinguishable from other vesicular diseases of swine including foot-and-mouth disease (FMD). Recently, it was reported that buffalo in Guangdong, China were experiencing clinical symptoms similar to FMD including mouth ulcers and lameness tested positive for SVA. The objective of this study was to determine the susceptibility of cattle (
MeSH term(s)	Female ; Pregnancy ; Cattle ; Animals ; Swine ; Picornaviridae Infections ; Swine Diseases ; Colostrum ; Leukocytes, Mononuclear ; Picornaviridae ; Foot-and-Mouth Disease ; Cell Line
Language	English
Publishing date	2022-12-16
Publishing country	Switzerland
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
ZDB-ID	2516098-9
ISSN	1999-4915 ; 1999-4915
ISSN (online)	1999-4915
ISSN	1999-4915
DOI	10.3390/v14122809
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Article ; Online: Bacterin Vaccination Provides Insufficient Protection Against Streptococcus equi Subspecies zooepidemicus Infection in Pigs

Samantha J. Hau / Alexandra Buckley / Susan L. Brockmeier

Frontiers in Veterinary Science, Vol

2022 Volume 9

Abstract: Streptococcus equi subspecies zooepidemicus (SEZ) is a zoonotic pathogen capable of causing severe disease in many mammalian species. Historically, SEZ has not been a common cause of disease in pigs in North America; however, in 2019, SEZ caused ... ...

Abstract	Streptococcus equi subspecies zooepidemicus (SEZ) is a zoonotic pathogen capable of causing severe disease in many mammalian species. Historically, SEZ has not been a common cause of disease in pigs in North America; however, in 2019, SEZ caused mortality events leading to severe illness and 30–50% mortality in exposed animal groups. Because of the rapid progression of disease, it is important to investigate intervention strategies to prevent disease development. In this study, pigs were divided into four groups: (1) vaccinated with an inactivated SEZ vaccine generated from a highly mucoid 2019 mortality event isolate; (2) vaccinated with an inactivated SEZ vaccine generated from a genetically similar, non-mucoid isolate from a guinea pig; (3) and (4) sham vaccinated. Following boost vaccination, groups 1–3 were challenged with a 2019 mortality event isolate and group 4 were non-challenged controls. Antibody titers were higher for SEZ vaccinated animals than sham vaccinated animals; however, no anamnestic response was observed, and titers were lower than typically seen following the use of inactivated vaccines. Vaccination did not provide protection from disease development or mortality following challenge, which could be associated with the comparatively low antibody titers generated by vaccination. Surviving pigs also remained colonized and transmitted SEZ to naïve contact pigs 3 weeks following challenge, indicating that healthy animals can act as a source of SEZ exposure. Future investigation should evaluate different vaccine formulations, such as increased antigen load or an alternative adjuvant, that could induce a more robust adaptive immune response.
Keywords	Streptococcus equi subspecies zooepidemicus ; swine ; bacterin ; vaccine ; Streptococcosis ; Veterinary medicine ; SF600-1100
Subject code	630
Language	English
Publishing date	2022-02-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Divergent Pathogenesis and Transmission of Highly Pathogenic Avian Influenza A(H5N1) in Swine.

Arruda, Bailey / Baker, Amy L Vincent / Buckley, Alexandra / Anderson, Tavis K / Torchetti, Mia / Bergeson, Nichole Hines / Killian, Mary Lea / Lantz, Kristina

Emerging infectious diseases

2024 Volume 30, Issue 4, Page(s) 738–751

Abstract: Highly pathogenic avian influenza (HPAI) viruses have potential to cross species barriers and cause pandemics. Since 2022, HPAI A(H5N1) belonging to the goose/Guangdong 2.3.4.4b hemagglutinin phylogenetic clade have infected poultry, wild birds, and ... ...

Abstract	Highly pathogenic avian influenza (HPAI) viruses have potential to cross species barriers and cause pandemics. Since 2022, HPAI A(H5N1) belonging to the goose/Guangdong 2.3.4.4b hemagglutinin phylogenetic clade have infected poultry, wild birds, and mammals across North America. Continued circulation in birds and infection of multiple mammalian species with strains possessing adaptation mutations increase the risk for infection and subsequent reassortment with influenza A viruses endemic in swine. We assessed the susceptibility of swine to avian and mammalian HPAI H5N1 clade 2.3.4.4b strains using a pathogenesis and transmission model. All strains replicated in the lung of pigs and caused lesions consistent with influenza A infection. However, viral replication in the nasal cavity and transmission was only observed with mammalian isolates. Mammalian adaptation and reassortment may increase the risk for incursion and transmission of HPAI viruses in feral, backyard, or commercial swine.
MeSH term(s)	Animals ; Birds ; Influenza A Virus, H5N1 Subtype/genetics ; Influenza in Birds ; Mammals ; Phylogeny ; Poultry ; Swine ; Orthomyxoviridae Infections
Language	English
Publishing date	2024-03-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	1380686-5
ISSN	1080-6059 ; 1080-6040
ISSN (online)	1080-6059
ISSN	1080-6040
DOI	10.3201/eid3004.231141
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Article ; Online: Porcine Anti-viral Immunity: How Important Is It?

Lager, Kelly M / Buckley, Alexandra C

Frontiers in immunology

2019 Volume 10, Page(s) 2258

Abstract: Pork has become the number one meat consumed worldwide. Meeting the demand for pork has forced the revolution of swine production from traditional husbandry practices that involved a few pigs or small herds to intensive concentration of swine raised in ... ...

Abstract	Pork has become the number one meat consumed worldwide. Meeting the demand for pork has forced the revolution of swine production from traditional husbandry practices that involved a few pigs or small herds to intensive concentration of swine raised in multisite production systems. This dramatic change has made the production of pork very efficient, but it has also changed the ecology of many swine diseases, may encourage the emergence of new diseases, and amplifies the economic impact of swine diseases. Sustained treatment of diseases in livestock production is not feasible making prevention of disease a priority. Prevention of livestock diseases involves eliminating exposure to pathogens and anti-viral strategies to prevent or reduce clinical disease. For some swine diseases, efficacious vaccines can be made, however, for other diseases the host/pathogen relationship is more complex and efficacious vaccines are not available. Given the increasing demand for pork, the development of new approaches to improve swine anti-viral immunity is critical. Rate-limiting steps to improving vaccines are understanding how the pathogen interacts with the host's immune system, any immunopathology resulting from such interactions and how the host's immune system resolves the infection. Solving this puzzle will require sustained research and may require new technologies to battle contemporary diseases now wreaking havoc in swine production systems around the world. This Special Issue will focus on current swine viral diseases that are the most challenging to the global production of pork with contributions focusing on anti-viral immunity.
MeSH term(s)	Animal Husbandry/methods ; Animals ; Antiviral Agents/immunology ; Humans ; Immune System/immunology ; Livestock/immunology ; Livestock/virology ; Swine ; Swine Diseases/immunology ; Swine Diseases/virology ; Virus Diseases/immunology ; Virus Diseases/veterinary
Chemical Substances	Antiviral Agents
Keywords	covid19
Language	English
Publishing date	2019-09-27
Publishing country	Switzerland
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
ZDB-ID	2606827-8
ISSN	1664-3224 ; 1664-3224
ISSN (online)	1664-3224
ISSN	1664-3224
DOI	10.3389/fimmu.2019.02258
Database	MEDical Literature Analysis and Retrieval System OnLINE

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