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Silva MR, Duch AAS, Lage RTPDA, de Faria LS, Menezes LDM, Ribeiro JB, de Souza GN, Filho PMS, Preis IS, Sales ÉB, de Souza PG, Araújo FR, Guimarães RJDPSE, Mendes T, Pettan-Brewer C, Fonseca-Júnior AA. Recovery of Brucella in raw milk Minas artisanal cheese approved for consumption by official inspection agency in Brazil: assessment of prevalence and risk factors through One Health integrated approaches. Trans R Soc Trop Med Hyg 2022; 116:1091-1099. [PMID: 36055973 DOI: 10.1093/trstmh/trac083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 05/31/2022] [Accepted: 08/11/2022] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Minas artisanal cheese (MAC) from the Serro region is a Brazilian intangible cultural heritage. Produced from raw milk, it may carry zoonotic pathogens such as Brucella. This study included a randomized survey for the prevalence of Brucella-positive MAC and its associated factors. METHODS MAC samples (n=55), each one from a different rural family-based cheese-processing agroindustry, were analysed for Brucella by direct polymerase chain reaction (PCR) species-specific DNA detection and cultivation-based approaches. RESULTS Among 55 MACs that were analysed, we found 17 Brucella DNA-positive samples (30.9% [95% confidence interval {CI} 18.7 to 43.1]) by PCR and, for the first time, from one MAC (1.8% [95% CI 0.5 to 9.7]), viable Brucella abortus was recovered by cultivation. Higher values for two variables, the number of lactating cows per herd (p=0.043) and daily milk production per herd (p=0.043), were each associated with Brucella-positive MAC, which concentrated in three high-risk and one low-risk spatial clusters. CONCLUSIONS MAC may be a source of Brucella for humans, since the positive samples were from batches that were sold by cheesemakers. This should be of concern and encourage cooperation between the health and agriculture sectors in order to mitigate this public health risk through One Health integrated approaches.
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Affiliation(s)
| | | | | | | | | | | | | | - Paulo Martins Soares Filho
- Brazilian Ministry of Agriculture, Livestock and Food Supply, 33600-000 Pedro Leopoldo, Minas Gerais, Brazil
| | - Ingred Sales Preis
- Brazilian Ministry of Agriculture, Livestock and Food Supply, 33600-000 Pedro Leopoldo, Minas Gerais, Brazil
| | - Érica Bravo Sales
- Brazilian Ministry of Agriculture, Livestock and Food Supply, 33600-000 Pedro Leopoldo, Minas Gerais, Brazil
| | - Patrícia Gomes de Souza
- Brazilian Ministry of Agriculture, Livestock and Food Supply, 33600-000 Pedro Leopoldo, Minas Gerais, Brazil
| | | | | | - Tulio Mendes
- Marinha do Brasil, 20725090, Rio de Janeiro, Brazil
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Siconelli MJL, Jorge DMDM, Castro-Jorge LAD, Fonseca-Júnior AA, Nascimento ML, Floriano VG, Souza FRD, Queiroz-Júnior EMD, Camargos MF, Costa EDL, Carvalho AAB, Fonseca BALD. Evidence for current circulation of an ancient West Nile virus strain (NY99) in Brazil. Rev Soc Bras Med Trop 2021; 54:S0037-86822021000100630. [PMID: 33681933 PMCID: PMC8008906 DOI: 10.1590/0037-8682-0687-2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/05/2021] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION: In Brazil, West Nile virus (WNV) was first detected, in 2018, in horses with neurological disease. AIM: We report the first case of WNV infection in a horse from Ceará state and the complete genome sequence of an isolate from Espírito Santo state. Both infections occurred in 2019. METHODS: WNV was isolated from the tissues of a horse with neurological signs in Espírito Santo and sequenced by MiSeq. RESULTS: Phylogenetic analysis revealed that the isolate belongs to lineage 1a, clustering with the NY99 strain, a strain that has not circulated in the USA since 2005. CONCLUSIONS: Our findings reinforce the hypothesis that WNV has been silently circulating in Brazil for many years.
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Affiliation(s)
- Márcio Junio Lima Siconelli
- Universidade São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Clínica Médica, Ribeirão Preto, SP, Brasil
| | - Daniel Macedo de Melo Jorge
- Universidade São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Biologia Celular e Molecular, Ribeirão Preto, SP, Brasil
| | - Luiza Antunes de Castro-Jorge
- Universidade São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Clínica Médica, Ribeirão Preto, SP, Brasil
| | - Antônio Augusto Fonseca-Júnior
- Ministério da Agricultura, Pecuária e Abastecimento, Laboratório Federal de Defesa Agropecuária de Minas Gerais, Pedro Leopoldo, MG, Brasil
| | - Mateus Laguardia Nascimento
- Ministério da Agricultura, Pecuária e Abastecimento, Laboratório Federal de Defesa Agropecuária de Minas Gerais, Pedro Leopoldo, MG, Brasil
| | - Vitor Gonçalves Floriano
- Universidade São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Clínica Médica, Ribeirão Preto, SP, Brasil
| | | | | | - Marcelo Fernandes Camargos
- Ministério da Agricultura, Pecuária e Abastecimento, Laboratório Federal de Defesa Agropecuária de Minas Gerais, Pedro Leopoldo, MG, Brasil
| | - Eliana Dea Lara Costa
- Ministério da Agricultura, Pecuária e Abastecimento, Departamento de Saúde Animal, Brasília, DF, Brasil
| | - Adolorata Aparecida Bianco Carvalho
- Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Patologia, Reprodução e Saúde Única, Jaboticabal, SP, Brasil
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Pinheiro-de-Oliveira TF, Fonseca-Júnior AA, Camargos MF, Laguardia-Nascimento M, Giannattasio-Ferraz S, Cottorello ACP, de Oliveira AM, Góes-Neto A, Barbosa-Stancioli EF. Reverse transcriptase droplet digital PCR to identify the emerging vesicular virus Senecavirus A in biological samples. Transbound Emerg Dis 2019; 66:1360-1369. [PMID: 30864242 DOI: 10.1111/tbed.13168] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 12/13/2022]
Abstract
Senecavirus A (SVA) belonging to the family Picornaviridae, genus Senecavirus was incidentally isolated in 2002 from the PER.C6 (transformed foetal retinoblast) cell line. However, currently, this virus is associated with vesicular disease in swine and it has been reported in countries such as the United States of America, Canada, China, Thailand and Colombia. In Brazil, the SVA was firstly reported in 2015 in outbreaks of vesicular disease in swine, clinically indistinguishable of Foot-and-mouth disease, a contagious viral disease that generates substantial economic losses. In the present work, it was standardized a diagnostic tool for SVA based on RNA reverse transcriptase droplet digital PCR (RT-ddPCR) using one-step and two-step approaches. Analytical sensitivity and specificity were done in parallel with real-time PCR, RT-qPCR (one-step and two-step) for comparison of sensitivity and specificity of both methods. In the standardization of RT-ddPCR, the double-quenched probe and the temperature gradient were crucial to reduce background and improve amplitude between positive and negative droplets. The limit of detection and analytical specificity of techniques of one-step techniques showed superior performance than two-step methods described here. Additionally, the results showed 94.2% concordance (p < 0.001) for RT-ddPCR and RT-qPCR using the one-step assay approach and biological samples from Brazilian outbreaks of Senecavirus A. However, ddRT-PCR had a better performance than RT-PCR when swine serum pools were tested. According to the results, the one-step RT-ddPCR and RT-qPCR is highlighted to be used as an auxiliary diagnostic tool for Senecavirus A and for viral RNA absolute quantification in biological samples (RT-ddPCR), being a useful tool for vesicular diseases control programs.
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Affiliation(s)
| | - A A Fonseca-Júnior
- Ministério da Agricultura, Pecuária e Abastecimento, Pedro Leopoldo, Minas Gerais, Brazil
| | - M F Camargos
- Ministério da Agricultura, Pecuária e Abastecimento, Pedro Leopoldo, Minas Gerais, Brazil
| | - M Laguardia-Nascimento
- Ministério da Agricultura, Pecuária e Abastecimento, Pedro Leopoldo, Minas Gerais, Brazil
| | | | - A C P Cottorello
- Ministério da Agricultura, Pecuária e Abastecimento, Pedro Leopoldo, Minas Gerais, Brazil
| | - A M de Oliveira
- Ministério da Agricultura, Pecuária e Abastecimento, Pedro Leopoldo, Minas Gerais, Brazil
| | - A Góes-Neto
- Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Silva MR, Rocha ADS, Araújo FR, Fonseca-Júnior AA, Alencar APD, Suffys PN, Costa RRD, Moreira MAS, Guimarães MDC. Risk factors for human Mycobacterium bovis infections in an urban area of Brazil. Mem Inst Oswaldo Cruz 2018; 113:e170445. [PMID: 29898014 PMCID: PMC5989489 DOI: 10.1590/0074-02760170445] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 05/08/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The World Health Organization (WHO) has classified human zoonotic tuberculosis (TB) due to Mycobacterium bovis as a neglected issue in the developing world. In a recent cross-sectional study in Brazil, three of 189 TB patients presented with a coinfection of M. bovis and M. tuberculosis and were selected as cases for this study. OBJECTIVE The aim was to evaluate risk factors (RF) for zoonotic TB in an urban area of Brazil in order to guide preventive programmes. METHODS A matched case-control study was carried out nested within a cross-sectional study. For each of the three cases, 14 age- and sex-matched controls (TB due to M. tuberculosis) were selected. FINDINGS Zoonotic potential exposures (ZE) and extrapulmonary TB (EPTB) were independently associated with zoonotic TB in multivariate analyses. CONCLUSIONS ZE by occupation and consumption of raw milk and derivative products that place individuals in direct and indirect contact with animals and their excretions/secretions increase the risk for zoonotic TB in Brazil, especially among those with EPTB. Therefore, measures such as efficient control of bovine TB, distribution of pasteurised milk and its derivative products, and the diagnosis and monitoring of zoonotic TB in humans are essential steps, especially in developing countries where bovine TB is enzootic, and further studies are necessary.
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