ABSTRACT
A retrospective study of poxvirus infections diagnosed in cattle from Goiás state (GO), Brazil, from 2010 to 2018, was performed. All cases have been investigated by the GO Official Veterinary Service (Agrodefesa), from which technical forms and protocols of veterinary diagnosis laboratories were reviewed. In most cases, samples of oral or cutaneous tissues and/or swabs were submitted for virological diagnosis by polymerase chain reaction (PCR) and/or virus isolation. Thirty seven outbreaks/cases of vesicular disease were notified in cattle of 25 counties; in 33 cases the animals presented lesions clinically compatible with poxviruses. The etiology of 25 out of 33 outbreaks/cases was confirmed as poxviruses by PCR and/or viral isolation: 13 as bovine vaccinia virus (VACV), six as pseudocowpox virus (PCPV), five as bovine papular stomatitis virus (BPSV) and one coinfection (VACV and an Orf virus-like parapoxvirus). The laboratory confirmed that cases occurred mainly in dairy cattle (19/25) and during the dry season (22/25). In adult cattle, gross changes were observed mainly in the teats and udder and included vesicles, ulcers, crusts, papules and scars and varied of type, severity and affected region, depending on the poxvirus species. In calves, the main lesions were ulcers in the mouth and muzzle. Zoonotic lesions compatible with poxvirus infections were observed for all diagnosed poxviruses, affecting especially the hands of milkers and other farm workers. Our data demonstrate the sanitary and economic relevance of these diseases and the wide circulation of different poxviruses in cattle from GO.(AU)
Foi realizado um estudo retrospectivo das infecções por poxvírus diagnosticadas em bovinos do estado de Goiás (GO), entre 2010 e 2018. Todos os casos foram investigados pela Agência Goiana de Defesa Agropecuária (Agrodefesa). Foram revisados formulários técnicos e protocolos de laboratórios de diagnóstico veterinário. Na maioria dos casos, amostras de tecidos orais ou cutâneos e/ou swabs foram encaminhadas para diagnóstico virológico. Foram notificados 37 surtos/casos de doença vesicular em bovinos em 25 municípios; em 33 casos os animais apresentavam lesões clinicamente compatíveis com poxvírus. A etiologia de 25 de 33 surtos/casos foi confirmada como poxvírus por PCR e/ou isolamento viral: 13 como vírus vaccínia (VACV), seis como vírus pseudocowpox (PCPV), cinco como vírus da estomatite papular bovina (BPSV) e um caso de coinfecção (VACV e um parapoxvírus semelhante ao Orf vírus). Os casos confirmados laboratorialmente ocorreram principalmente em bovinos leiteiros (19/25) e durante a estação seca (22/25). Em bovinos adultos, alterações macroscópicas foram observadas principalmente nas tetas e úbere e incluíram vesículas, úlceras, crostas, pápulas e cicatrizes e variaram quanto ao tipo, gravidade e região afetada, dependendo da espécie do poxvírus. Em bezerros, as principais lesões foram úlceras na boca e focinho. Lesões zoonóticas compatíveis com infecção por poxvírus foram observadas em todas as poxviroses diagnosticadas, afetando principalmente as mãos dos ordenhadores e outros trabalhadores rurais. Nossos dados demonstram a relevância sanitária e econômica dessas doenças e a ampla circulação de diferentes poxvírus em bovinos de GO.(AU)
Subject(s)
Humans , Animals , Cattle , Vaccinia virus/isolation & purification , Parapoxvirus/isolation & purification , Pseudocowpox Virus/isolation & purification , Poxviridae Infections/diagnosis , Poxviridae Infections/pathology , Poxviridae Infections/epidemiology , Coinfection/veterinary , Viral ZoonosesABSTRACT
A retrospective study of poxvirus infections diagnosed in cattle from Goiás state (GO), Brazil, from 2010 to 2018, was performed. All cases have been investigated by the GO Official Veterinary Service (Agrodefesa), from which technical forms and protocols of veterinary diagnosis laboratories were reviewed. In most cases, samples of oral or cutaneous tissues and/or swabs were submitted for virological diagnosis by polymerase chain reaction (PCR) and/or virus isolation. Thirty seven outbreaks/cases of vesicular disease were notified in cattle of 25 counties; in 33 cases the animals presented lesions clinically compatible with poxviruses. The etiology of 25 out of 33 outbreaks/cases was confirmed as poxviruses by PCR and/or viral isolation: 13 as bovine vaccinia virus (VACV), six as pseudocowpox virus (PCPV), five as bovine papular stomatitis virus (BPSV) and one coinfection (VACV and an Orf virus-like parapoxvirus). The laboratory confirmed that cases occurred mainly in dairy cattle (19/25) and during the dry season (22/25). In adult cattle, gross changes were observed mainly in the teats and udder and included vesicles, ulcers, crusts, papules and scars and varied of type, severity and affected region, depending on the poxvirus species. In calves, the main lesions were ulcers in the mouth and muzzle. Zoonotic lesions compatible with poxvirus infections were observed for all diagnosed poxviruses, affecting especially the hands of milkers and other farm workers. Our data demonstrate the sanitary and economic relevance of these diseases and the wide circulation of different poxviruses in cattle from GO.
Foi realizado um estudo retrospectivo das infecções por poxvírus diagnosticadas em bovinos do estado de Goiás (GO), entre 2010 e 2018. Todos os casos foram investigados pela Agência Goiana de Defesa Agropecuária (Agrodefesa). Foram revisados formulários técnicos e protocolos de laboratórios de diagnóstico veterinário. Na maioria dos casos, amostras de tecidos orais ou cutâneos e/ou swabs foram encaminhadas para diagnóstico virológico. Foram notificados 37 surtos/casos de doença vesicular em bovinos em 25 municípios; em 33 casos os animais apresentavam lesões clinicamente compatíveis com poxvírus. A etiologia de 25 de 33 surtos/casos foi confirmada como poxvírus por PCR e/ou isolamento viral: 13 como vírus vaccínia (VACV), seis como vírus pseudocowpox (PCPV), cinco como vírus da estomatite papular bovina (BPSV) e um caso de coinfecção (VACV e um parapoxvírus semelhante ao Orf vírus). Os casos confirmados laboratorialmente ocorreram principalmente em bovinos leiteiros (19/25) e durante a estação seca (22/25). Em bovinos adultos, alterações macroscópicas foram observadas principalmente nas tetas e úbere e incluíram vesículas, úlceras, crostas, pápulas e cicatrizes e variaram quanto ao tipo, gravidade e região afetada, dependendo da espécie do poxvírus. Em bezerros, as principais lesões foram úlceras na boca e focinho. Lesões zoonóticas compatíveis com infecção por poxvírus foram observadas em todas as poxviroses diagnosticadas, afetando principalmente as mãos dos ordenhadores e outros trabalhadores rurais. Nossos dados demonstram a relevância sanitária e econômica dessas doenças e a ampla circulação de diferentes poxvírus em bovinos de GO.
Subject(s)
Humans , Animals , Cattle , Poxviridae Infections/diagnosis , Poxviridae Infections/epidemiology , Poxviridae Infections/pathology , Parapoxvirus/isolation & purification , Vaccinia virus/isolation & purification , Pseudocowpox Virus/isolation & purification , Coinfection/veterinary , Viral ZoonosesABSTRACT
Abstract Milker's nodule is an occupational viral skin disease of universal distribution, caused by the Paravaccinia virus and that occurs in individuals who deal with dairy cattle herds. We describe a case acquired due to lack of use of PPE (Personal Protective Equipment) and perform a literature review.
Subject(s)
Humans , Animals , Female , Middle Aged , Cattle , Skin Diseases, Viral/pathology , Poxviridae Infections/pathology , Hand Dermatoses/pathology , Occupational Diseases/pathology , Biopsy , Pseudocowpox Virus , Disease ProgressionABSTRACT
Milker's nodule is a harmless skin lesion that's caused by the paravaccinia virus (also called pseudocowpox virus), which is a member of the genus Parapoxviridae. It occurs worldwide, but it is prevalent only in individuals who are in close contact with cattle. We report here on a woman who presented with a dusky purpuric center surrounded by a white or gray ring and an outer red halo on the back of the right hand. Histologically, intracytoplasmic inclusion bodies were evident in the upper epidermis, and these revealed cylindrical virus particles on electron microscopy. Parapoxvirus was identified by polymerase chain reaction with using pan-parapoxvirus primer 1 (PPP-1) and PPP-4.
Subject(s)
Animals , Cattle , Female , Humans , Epidermis , Hand , Inclusion Bodies , Microscopy, Electron , Parapoxvirus , Polymerase Chain Reaction , Pseudocowpox Virus , Skin , VirionABSTRACT
This study is to establish a cell-based pharmacological model targeting HIV-1 replication for compounds screening and to screen compounds randomly selected from compounds library by using this pseudotyped viral system. The cell-based HIV-1 replication pharmacological model was set up by HIV-1 core packed with vesicular stomatitis virus glycoprotein. The level of HIV-1 replication was presented by reporter genes expression (luciferase activity or percentage of GFP positive cells). When a compound has inhibitory effect on VSVG/HIV model, VSVG/MLV model would be used to test for specificity. Vesicular stomatitis virus glycoprotein can efficiently mediate HIV core into a wide range of host cells. Expression level of reporter genes showed dose-dependent manner with virion dilution. Among 500 compounds, three compounds dose-dependently inhibit HIV-1 replication, but not MLV replication. VSVG/HIV pseudotyped viral system can be used as a pharmacological model for HIV-1 replication inhibitor screening. Compounds 2-methylthio-5-(4-methylbenzo)amido-l,3,4-thiadiazole, N-(3-hydroxyphenyl)-2-(4-isobutylphenyl) propionamide, and N-(4-picolyl)-4-methylbenzenesulfonamide can specifically inhibit HIV-1 replication with IC50 of 1.92, 5.38, and 3.39 micromol L(-1) respectively.
Subject(s)
Humans , Anti-HIV Agents , Pharmacology , DNA Replication , Didanosine , Pharmacology , Drug Evaluation, Preclinical , Methods , Genes, Reporter , Genetics , HIV-1 , Physiology , Lamivudine , Pharmacology , Pseudocowpox Virus , Tumor Cells, Cultured , Virus Replication , Zidovudine , PharmacologyABSTRACT
El nódulo de los ordeñadores es una afección viral benigna que por lo general se presenta como un nódulo en la mano de personas que manipulan ganado bovino infectado. Reportamos el caso de una mujer de 36 años con infrecuente localización facial consecutivo a cornada de vaca. Los rasgos clínicos característicos, la autorresolución del cuadro, así como los cambios citopáticos virales en la biopsia fueron significativos para establecer el diagnóstico. Es una enfermedad que podemos encontrarla en zonas periurbanas de nuestro país y factible de condicionar error diagnóstico.
Subject(s)
Humans , Female , Adult , Poxviridae Infections/diagnosis , Poxviridae Infections/therapy , Pseudocowpox VirusABSTRACT
Os autores apresentam estudo de dez pacientes portadores de nódulos dos ordenhadores, com idades variando de 13 a 48 anos, sendo oito do sexo masculino e dois do feminino, todos com atividades relacionadas ao contato ou manuseio de animais ou derivados contaminados. O número de lesöes variou de um a três, todas localizadas nas mäos e nos dedos. Dois pacientes apresentaram fenômenos associados, febre em um e no outro linfangite e erupçäo micropapulosa do membro superior direito. Näo foram realizados tratamentos, excluído o sintomático, havendo regressäo espontânea das lesoes