Seroepidemiology of Paracoccidioides brasiliensis infection in horses from Rio Grande do Sul, Brazil.
Abstract: Paracoccidioides brasiliensis is the etiological agent of the major systemic mycosis in Brazil, called paracoccidioidomycosis. Although the Rio Grande do Sul is considered an endemic area of the disease, there are few studies on the ecology of P. brasiliensis in the state. Therefore, this study aimed to evaluate the infection of P. brasiliensis in horses from the mesoregion of Southwest Riograndense, using these animals as sentinels. Serological techniques, such as double immunodiffusion in agar gel (AGID) and indirect ELISA, were performed to detect the anti-gp43 P. brasiliensis antibody in horses from five different farms in the region of Bagé, RS, Brazil. Serology was performed in 200 Pure Blood English horses up to two years of age that were born and raised exclusively at the farms. Of these horses, 12% had anti-gp43 antibodies according to the ELISA results, with rates ranging from 0 to 30% according to the farm of origin (p < 0.001). Based on the immunodiffusion results, all equine serum samples were negative. These results indicate the presence of the fungus P. brasiliensis in the middle region of the southwestern state of Rio Grande do Sul, Brazil.
Publication Date: 2015-06-01 PubMed ID: 26273267PubMed Central: PMC4507544DOI: 10.1590/S1517-838246246220140559Google Scholar: Lookup
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- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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The research article is about a study aimed at understanding the rate of infection by Paracoccidioides brasiliensis, a harmful fungus, in horses located in the southwestern region of Rio Grande do Sul, Brazil. The horses, used as sentinels, revealed a 12% infection rate, implying the presence of the fungus in the examined region.
Research Purpose and Context
- Paracoccidioides brasiliensis is a fungus and the cause of paracoccidioidomycosis, a major systemic mycosis (fungal infection) in Brazil. The infection is notably prevalent in the state of Rio Grande do Sul, which is considered endemic for the disease.
- The main purpose of this study was to investigate the infection rate of P. brasiliensis in horses within the mesoregion of Southwest Riograndense. The horses were used as sentinel animals, enabling researchers to gain insights into the ecological presence of P. brasiliensis in the region.
Methodology
- Two serological techniques, double immunodiffusion in agar gel (AGID) and indirect ELISA, were used to detect the presence of anti-gp43 P. brasiliensis antibody in horses.
- The study focused on five distinct farms in the Bagé, RS, Brazil region. In total, 200 Pure Blood English horses aged up to two years were selected for the study. These animals were born and raised exclusively at the study farms, providing a controlled sample for the research.
Findings
- The ELISA test results indicated a 12% infection rate, as the anti-gp43 antibodies were present in these horses.
- The infection rates varied by farms, ranging from 0% to 30%. These variations in infection rates across different farms were statistically significant (p < 0.001).
- However, the AGID method did not detect any positive cases among the serum samples collected from the horses.
Conclusion
- The study concluded that there is a presence of P. brasiliensis infection amongst horses in the rural area of Rio Grande do Sul, Brazil. This indicates the overall presence and potential proliferation of this harmful fungus within the region.
Cite This Article
APA
Albano AP, Klafke GB, Brandolt TM, Da Hora VP, Nogueira CE, Xavier MO, Meireles MC.
(2015).
Seroepidemiology of Paracoccidioides brasiliensis infection in horses from Rio Grande do Sul, Brazil.
Braz J Microbiol, 46(2), 513-517.
https://doi.org/10.1590/S1517-838246246220140559 Publication
Researcher Affiliations
- Universidade Federal de Pelotas, Departamento de Veterinária Preventiva, Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brasil, Departamento de Veterinária Preventiva, Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
- Universidade Federal do Rio Grande, Laboratório de Micologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brasil, Laboratório de Micologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil.
- Universidade Federal do Rio Grande, Laboratório de Micologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brasil, Laboratório de Micologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil.
- Universidade Federal do Rio Grande, Laboratório de Micologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brasil, Laboratório de Micologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil.
- Universidade Federal de Pelotas, Departamento de Veterinária Preventiva, Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brasil, Departamento de Veterinária Preventiva, Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
- Universidade Federal do Rio Grande, Laboratório de Micologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brasil, Laboratório de Micologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil.
- Universidade Federal de Pelotas, Departamento de Veterinária Preventiva, Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brasil, Departamento de Veterinária Preventiva, Faculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brazil.
MeSH Terms
- Animals
- Antibodies, Fungal / blood
- Brazil / epidemiology
- Enzyme-Linked Immunosorbent Assay
- Horse Diseases / epidemiology
- Horse Diseases / microbiology
- Horses
- Paracoccidioides / immunology
- Paracoccidioidomycosis / epidemiology
- Paracoccidioidomycosis / microbiology
- Paracoccidioidomycosis / veterinary
- Seroepidemiologic Studies
References
This article includes 23 references
- Albano AP, Klafke GB, Brandolt TM, Da Hora VP, Minello LF, Jorge S, Santos EO, Behling GM, Camargo ZP, Xavier MO, Meireles MC. Wild animals as sentinels of Paracoccidioides brasiliensis in the state of Rio Grande do Sul, Brazil.. Mycopathologia 2014 Apr;177(3-4):207-15.
- Bagagli E, Bosco SMG. Armadillos and dimorphic pathogenic fungi: Ecological and evolutionary aspects. University Press of Florida; Gainesville: 2008; pp. 103–110.
- Bártholo RM, Florião RA, Oliveira LPA. Um caso fácil: um diagnóstico rápido. Bol Pneumol Sanit 2000;8:2.
- Brummer E, Castaneda E, Restrepo A. Paracoccidioidomycosis: an update.. Clin Microbiol Rev 1993 Apr;6(2):89-117.
- De Camargo Z, Unterkircher C, Campoy SP, Travassos LR. Production of Paracoccidioides brasiliensis exoantigens for immunodiffusion tests.. J Clin Microbiol 1988 Oct;26(10):2147-51.
- Canteros CE, Madariaga MJ, Lee W, Rivas MC, Davel G, Iachini R. [Endemic fungal pathogens in a rural setting of Argentina: seroepidemiological study in dogs].. Rev Iberoam Micol 2010 Mar 31;27(1):14-9.
- Conti-Díaz IA, Alvarez BJ, Gezuele E, González Marini H, Duarte J, Falcón J. [Intradermal reaction survey with paracoccidioidin and histoplasmin in horses].. Rev Inst Med Trop Sao Paulo 1972 Nov-Dec;14(6):372-6.
- Conti Días IA. On the unknown ecological niche of Paracoccidioides brasiliensis: our hypothesis of 1989: present status and perspectives.. Rev Inst Med Trop Sao Paulo 2007 Mar-Apr;49(2):131-4.
- Corte AC, Gennari SM, Labruna MB. Paracoccidioides brasiliensis infection in dogs from Western Brazilian Amazon. Pesq Vet Bras 2012;32:649–652.
- Corte AC, Itano EM, Freire RL. Detection of antibodies to Paracoccidioides brasiliensis in horses from northern region of Parana State. Semina Ciênc Agr 2009;30:431–436.
- Corte AC, Svoboda WK, Navarro IT, Freire RL, Malanski LS, Shiozawa MM, Ludwig G, Aguiar LM, Passos FC, Maron A, Camargo ZP, Itano EN, Ono MA. Paracoccidioidomycosis in wild monkeys from Paraná State, Brazil.. Mycopathologia 2007 Nov;164(5):225-8.
- Costa EO, Diniz LS, Netto CF. The prevalence of positive intradermal reactions to paracoccidioidin in domestic and wild animals in São Paulo, Brazil.. Vet Res Commun 1995;19(2):127-30.
- FEE - Fundação de Economia e Estatística. Rio Grande do Sul,nBrasil 2013. [Acessed 16 Sep 2013]. Available at: http://www.fee.rs.gov.br/feedados/consulta/unidades_geo_mesos.asp?n=Mesorregi%E3o%20Sudeste%20Rio-Grandense.
- Marques AS. Paracoccidioidomicose: atualização epidemiológica, clínica e terapêutica. An Bras Dermatol 2003;78:2.
- Oliveira GG, Navarro IT, Freire RL, Belitardo DR, Silveira LH, Camargo ZP, Itano EN, Ono MA. Serological survey of Paracoccidioidomycosis in sheep.. Mycopathologia 2012 Jan;173(1):63-8.
- Ono MA, Bracarense AP, Morais HS, Trapp SM, Belitardo DR, Camargo ZP. Canine paracoccidioidomycosis: a seroepidemiologic study.. Med Mycol 2001 Jun;39(3):277-82.
- Palmeiro M, Cherubini K, Yurgel LS. Paracoccidioidomicose – Revisão da Literatura. Sci Med 2005;15:4.
- Puccia R, Travassos LR. 43-kilodalton glycoprotein from Paracoccidioides brasiliensis: immunochemical reactions with sera from patients with paracoccidioidomycosis, histoplasmosis, or Jorge Lobo's disease.. J Clin Microbiol 1991 Aug;29(8):1610-5.
- Ramos-E-Silva M, Saraiva Ldo E. Paracoccidioidomycosis.. Dermatol Clin 2008 Apr;26(2):257-69, vii.
- Restrepo A, McEwen JG, Castañeda E. The habitat of Paracoccidioides brasiliensis: how far from solving the riddle?. Med Mycol 2001 Jun;39(3):233-41.
- Silveira LH, Domingos IH, Kouchi K, Itano EN, Silva EA, Landgraf VO, Werneck SM, Camargo ZP, Ono MA. Serological detection of antibodies against Paracoccidioides brasiliensis in dogs with leishmaniasis.. Mycopathologia 2006 Nov;162(5):325-9.
- Silveira LH, Paes RC, Medeiros EV, Itano EN, Camargo ZP, Ono MA. Occurrence of Antibodies to Paracoccidioides brasiliensis in dairy cattle from Mato Grosso do Sul, Brazil.. Mycopathologia 2008 Jun;165(6):367-71.
- Terçarioli GR, Bagagli E, Reis GM, Theodoro RC, Bosco Sde M, Macoris SA, Richini-Pereira VB. Ecological study of Paracoccidioides brasiliensis in soil: growth ability, conidia production and molecular detection.. BMC Microbiol 2007 Oct 22;7:92.
Citations
This article has been cited 7 times.- Hahn RC, Hagen F, Mendes RP, Burger E, Nery AF, Siqueira NP, Guevara A, Rodrigues AM, de Camargo ZP. Paracoccidioidomycosis: Current Status and Future Trends.. Clin Microbiol Rev 2022 Dec 21;35(4):e0023321.
- Brito TGN, Taborda M, Provenci B, Costa AN, Benard G. A Case-Control Study of Paracoccidioidomycosis in Women: The Hormonal Protection Revisited.. J Fungi (Basel) 2021 Aug 13;7(8).
- Ashraf N, Kubat RC, Poplin V, Adenis AA, Denning DW, Wright L, McCotter O, Schwartz IS, Jackson BR, Chiller T, Bahr NC. Re-drawing the Maps for Endemic Mycoses.. Mycopathologia 2020 Oct;185(5):843-865.
- Mendes JF, Von Groll A, Poester VR, Brasil CL, Brandolt TM, Klafke GB, Nogueira CEW, Meireles MCA, Xavier MO. Paracoccidioides spp. in Soil from the Pampa Biome in Southern Brazil.. Curr Microbiol 2019 Feb;76(2):258-262.
- Martinez R. New Trends in Paracoccidioidomycosis Epidemiology.. J Fungi (Basel) 2017 Jan 3;3(1).
- Headley SA, Pretto-Giordano LG, Di Santis GW, Gomes LA, Macagnan R, da Nóbrega DF, Leite KM, de Alcântara BK, Itano EN, Alfieri AA, Ono MA. Paracoccidioides brasiliensis-associated dermatitis and lymphadenitis in a dog.. Mycopathologia 2017 Apr;182(3-4):425-434.
- Teles AJ, Klafke GB, Cabana ÂL, Albano AP, Xavier MO, Meireles MC. Serological Investigation into Paracoccidioides brasiliensis Infection in Dogs from Southern Rio Grande do Sul, Brazil.. Mycopathologia 2016 Apr;181(3-4):323-8.
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