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Oliveira VRDC, Junior AAVM, Ferreira LC, Calvet TMQ, Santos SAD, Figueiredo FB, Campos MP, Rodrigues FDCDC, Oliveira RDVCD, Lemos ERSD, Rozental T, Silva RGD, Amendoeira MRR, Teles-de-Freitas R, Bruno RV, Morgado FN, Miranda LDFC, Menezes RC. Correction: Frequency of co-seropositivities for certain pathogens and their relationship with clinical and histopathological changes and parasite load in dogs infected with Leishmania infantum. PLoS One 2023; 18:e0296161. [PMID: 38100398 PMCID: PMC10723723 DOI: 10.1371/journal.pone.0296161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023] Open
Abstract
[This corrects the article DOI: 10.1371/journal.pone.0247560.].
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Oliveira VDC, Junior AAVM, Ferreira LC, Calvet TMQ, dos Santos SA, Figueiredo FB, Campos MP, Rodrigues FDCDC, de Oliveira RDVC, de Lemos ERS, Rozental T, da Silva RG, Amendoeira MRR, Teles-de-Freitas R, Bruno RV, Morgado FN, Miranda LDFC, Menezes RC. Frequency of co-seropositivities for certain pathogens and their relationship with clinical and histopathological changes and parasite load in dogs infected with Leishmania infantum. PLoS One 2021; 16:e0247560. [PMID: 33705437 PMCID: PMC7951870 DOI: 10.1371/journal.pone.0247560] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 02/09/2021] [Indexed: 11/18/2022] Open
Abstract
In canine leishmaniosis caused by the protozoan Leishmania infantum, little is known about how co-infections with or co-seropositivities for other pathogens can influence aggravation of this disease. Therefore, the objectives of this study were to evaluate the frequency of co-infections with or co-seropositivities for certain pathogens in dogs seropositive for L. infantum and their relationship with clinical signs, histological changes and L. infantum load. Sixty-six L. infantum-seropositive dogs were submitted to clinical examination, collection of blood and bone marrow, culling, and necropsy. Antibodies against Anaplasma spp., Borrelia burgdorferi sensu lato, Ehrlichia spp. and Toxoplasma gondii and Dirofilaria immitis antigens were investigated in serum. Samples from different tissues were submitted to histopathology and immunohistochemistry for the detection of Leishmania spp. and T. gondii. Quantitative real-time PCR was used to assess the L. infantum load in spleen samples. For detection of Coxiella burnetii, conventional PCR and nested PCR were performed using bone marrow samples. All 66 dogs tested positive for L. infantum by qPCR and/or culture. Fifty dogs (76%) were co-seropositive for at least one pathogen: T. gondii (59%), Ehrlichia spp., (41%), and Anaplasma spp. (18%). Clinical signs were observed in 15 (94%) dogs monoinfected with L. infantum and in 45 (90%) dogs co-seropositive for certain pathogens. The L. infantum load in spleen and skin did not differ significantly between monoinfected and co-seropositive dogs. The number of inflammatory cells was higher in the spleen, lung and mammary gland of co-seropositive dogs and in the mitral valve of monoinfected dogs. These results suggest that dogs infected with L. infantum and co-seropositive for certain pathogens are common in the region studied. However, co-seropositivities for certain pathogens did not aggravate clinical signs or L. infantum load, although they were associated with a more intense inflammatory reaction in some organs.
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Affiliation(s)
| | | | - Luiz Claudio Ferreira
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | | | - Shanna Araujo dos Santos
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | | | | | | | | | | | - Tatiana Rozental
- Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | | | | | | | - Rafaela Vieira Bruno
- Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular (INCT-EM)/CNPq, Rio de Janeiro, Brazil
| | | | | | - Rodrigo Caldas Menezes
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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Terças-Trettel ACP, Oliveira ECD, Fontes CJF, Melo AVGD, Oliveira RCD, Guterres A, Fernandes J, Silva RGD, Atanaka M, Espinosa MM, Lemos ERSD. Malaria and Hantavirus Pulmonary Syndrome in Gold Mining in the Amazon Region, Brazil. Int J Environ Res Public Health 2019; 16:ijerph16101852. [PMID: 31130600 PMCID: PMC6571568 DOI: 10.3390/ijerph16101852] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/11/2019] [Accepted: 04/18/2019] [Indexed: 02/03/2023]
Abstract
People living in mining regions are exposed to numerous biological agents by several specific types of transmission mechanisms. This study is designed to describe fatal hantavirus pulmonary syndrome (HPS) cases confirmed by serology and molecular analysis, where a seroprevalence survey was conducted in the gold mining regions of the state of Mato Grosso, in the official Amazon region, Brazil. Two fatal cases of HPS were confirmed in a mining area in the Legal Amazon, where malaria is one of the most important public health problems. A molecular analysis detected the presence of the genome of the Castelo dos Sonhos virus. Out of the 112 blood samples analyzed, five were positive for Plasmodium infection (four P. falciparum and one P. vivax), and four were seropositive for hantavirus, showing a seroprevalence of 3.57%. One of the four miners who was seroreactive for hantavirus concomitantly had P. falciparum infection, which was confirmed by thick blood smear. This manuscript highlights the importance of considering hantavirus pulmonary syndrome as a diagnostic possibility in febrile infection associated with pulmonary manifestations in mining areas where malaria cases are often identified.
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Affiliation(s)
- Ana Cláudia Pereira Terças-Trettel
- Nursing Department, Mato Grosso State University Campus Tangará da Serra, Tangara da Serra (MT) 78300-000, Brazil.
- Department, Mato Grosso Federal University, Cuiaba (MT) 78000-000, Brazil.
| | | | | | | | - Renata Carvalho de Oliveira
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
| | - Alexandro Guterres
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
| | - Jorlan Fernandes
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
| | - Raphael Gomes da Silva
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
| | - Marina Atanaka
- Department, Mato Grosso Federal University, Cuiaba (MT) 78000-000, Brazil.
| | | | - Elba Regina Sampaio de Lemos
- Hantaviruses and Rickettsiosis Laboratory, Oswaldo Cruz-FIOCRUZ Institute, Rio de Janeiro (RJ) 21000-000, Brazil.
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de Lemos ERS, Rozental T, Siqueira BN, Júnior AAP, Joaquim TE, da Silva RG, Leite CDA, Arantes AA, da Cunha MF, Borghi DP. Q Fever in Military Firefighters during Cadet Training in Brazil. Am J Trop Med Hyg 2018; 99:303-305. [PMID: 29943714 PMCID: PMC6090368 DOI: 10.4269/ajtmh.17-0979] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
We report five cases of Q fever among cadets during a training program for Military Firefighters Academy in the state of Rio de Janeiro, Brazil. This cluster confirms the significance of Coxiella burnetii as an infectious agent in Brazil, where the occurrence of this zoonosis is poorly documented and highlights the potential risk for Q fever transmission in rural areas or farms with infected animals.
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Affiliation(s)
| | - Tatiana Rozental
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Bibiana Nogueira Siqueira
- Hospital São Francisco de Assis, Rio de Janeiro, Brazil.,Hospital Central Aristarcho Pessoa-Corpo de Bombeiros Militar do Estado do Rio de Janeiro (CBMERJ), Rio de Janeiro, Brazil
| | | | - Thays Euzebio Joaquim
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Raphael Gomes da Silva
- Laboratório de Hantaviroses e Rickettsioses, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Carolina de Andrade Leite
- Hospital Universitário Pedro Ernesto, Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, Brazil.,Hospital Central Aristarcho Pessoa-Corpo de Bombeiros Militar do Estado do Rio de Janeiro (CBMERJ), Rio de Janeiro, Brazil
| | | | | | - Danielle Provençano Borghi
- Hospital Central Aristarcho Pessoa-Corpo de Bombeiros Militar do Estado do Rio de Janeiro (CBMERJ), Rio de Janeiro, Brazil
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Lemos ERSD, Mares-Guia MAM, Almeida DND, Silva RGD, Silva CM, Britto C, Lamas CC. [Traveler's fever associated with cervical adenomegaly and antibodies for Bartonella sp in a Brazilian patient returning from South Africa]. Rev Soc Bras Med Trop 2010; 43:472-3. [PMID: 20802956 DOI: 10.1590/s0037-86822010000400030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Accepted: 01/29/2010] [Indexed: 11/21/2022] Open
Abstract
A large number of travelers visit the African continent annually for studying, tourism or business reasons. The authors report a case of cervical adenomegaly, hepatomegaly and splenomegaly associated with a two-week history of fever and seropositivity for Bartonella sp in a 22-year-old female patient who returned from South Africa after field work with primates in a wild area.
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