Evaluation of antibodies against Toxoplasma gondii and Leptospira spp. in Magellanic penguins (Spheniscus magellanicus) on Magdalena Island, Chile

Acosta, Igor da Cunha Lima; Souza-Filho, Antonio Francisco; Muñoz-Léal, Sebastián; Soares, Herbert Sousa; Heinemann, Marcos Bryan; Moreno, Lucila; González‐Acuña, Daniel; Gennari, Solange Maria

doi:10.1016/j.vprsr.2019.100282

Cited by 10 publications

(13 citation statements)

References 23 publications

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“…Whether migratory birds could have transported the parasite is a possibility. Antibodies to T. gondii were detected in Magellanic penguins in Chile and these birds migrate throughout South American coastline (Acosta et al , 2018, 2019).…”

Section: Other Wild Avian Speciesmentioning

confidence: 99%

Epidemiologic significance of Toxoplasma gondii infections in turkeys, ducks, ratites and other wild birds: 2009–2020

et al. 2020

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Toxoplasma gondii infections are common in humans and animals worldwide. Wild and domestic avian species are important in the epidemiology of T. gondii infections because felids prey on them and excrete millions of oocysts in the environment, disseminating the infection. Herbivorous birds are also excellent sentinels of environmental contamination with T. gondii oocysts because they feed on the ground. Toxoplasma gondii infections in birds of prey reflect infections in intermediate hosts. Humans can become infected by consuming undercooked avian tissues. Here, the authors reviewed prevalence, persistence of infection, clinical disease, epidemiology and genetic diversity of T. gondii strains isolated from turkeys, geese, ducks, ratites and avian species (excluding chickens) worldwide 2009–2020. Genetic diversity of 102 T. gondii DNA samples isolated worldwide is discussed. The role of migratory birds in dissemination of T. gondii infection is discussed.

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Section: Other Wild Avian Speciesmentioning

confidence: 99%

Epidemiologic significance of Toxoplasma gondii infections in turkeys, ducks, ratites and other wild birds: 2009–2020

et al. 2020

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“…Icterohaemorrhagiae could also be detected in one out of the four chickens positive by MAT. Little is known about leptospirosis in birds, but previous reports have also shown low seropositivity in domestic and wildlife birds (Brasil et al, 2013;Acosta et al, 2019). The prevalence found in tegu lizards was relatively high, with four out of the 13 samples reacting against serogroups Icterohaemorrhagiae and Autumnalis, and although the small sample size, similar high prevalence is usually reported in Brazil (Biscola et al, 2011;Paz et al, 2019;Miranda et al, 2020).…”

Section: Discussionmentioning

confidence: 66%

Seroepidemiology of leptospirosis and molecular characterization of the first Leptospira strain isolated from Fernando de Noronha archipelago, Brazil

Silva¹,

Marvulo²,

Ferreira³

et al. 2020

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Leptospirosis has been widely reported in insular environments worldwide, characterizing a major public health threat. Although low genetic biodiversity is expected in these regions, the introduction of domestic and synanthropic mammals may contribute to the wider diversity leptospiral strains in insular settings. This study proposes a large-scale investigation of Leptospira infection in animals from Fernando de Noronha archipelago, Brazil. A total of 1,265 blood samples from domestic (n=682), synanthropic (n=133) and wild (n=450) animals were collected between 2007 and 2014, totaling 12 species. The presence of anti-Leptospira spp. antibodies was investigated by the Microscopic Agglutination Test (MAT) and kidney samples from synanthropic rodents were collected for the isolation of Leptospira spp. The leptospires recovered were further characterized by MAT with polyclonal antibodies, whole genome sequencing and Multilocus Sequence Typing (MLST). The MAT results revealed the presence of agglutinins in 90 samples (7.1%), and the most frequently found serogroup was Icterohaemorrhagiae (n=57) in practically all species included. Viable leptospires were recovered from one brown rat, and characterization revealed that the isolate belongs to L. interrogans serogroup Pyrogenes. This study stands as the most comprehensive investigation of Leptospira spp. infection in Fernando de Noronha archipelago, also providing the characterization of the first leptospiral strain ever isolated from an insular setting in Brazil. The results suggest that synanthropic rodents play a major role in the transmission of leptospirosis among wildlife and domestic species in the archipelago.

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“…Further studies should be addressed to clarify the actual role of dogs in the epidemiology of leptospirosis in Fernando de Noronha, and serological findings may at least indicate dogs as important sentinels for human infection in the island. (Acosta et al, 2019;Brasil et al, 2013). The prevalence found in tegu lizards was relatively high, with four out of the 13 samples reacting against serogroups Icterohaemorrhagiae and Autumnalis, and although the small sample size, similar high prevalence is usually reported in Brazil (Biscola et al, 2011;Miranda et al, 2020;Paz et al, 2019).…”

Section: Interestingly Even In Face Of the High Exposure Tomentioning

confidence: 67%

“…Icterohaemorrhagiae could also be detected in one out of the four chickens’ positive by MAT. Little is known about leptospirosis in birds, but previous reports have also shown low seropositivity in domestic and wildlife birds (Acosta et al., 2019; Brasil et al., 2013). The prevalence found in tegu lizards was relatively high, with four out of the 13 samples reacting against serogroups Icterohaemorrhagiae and Autumnalis, and although the small sample size, similar high prevalence is usually reported in Brazil (Biscola et al., 2011; Miranda et al., 2020; Paz et al., 2019).…”

Section: Discussionmentioning

confidence: 99%

Seroepidemiological investigation of animal leptospirosis and molecular characterization of the first Leptospira strain isolated from Fernando de Noronha archipelago, Brazil

Silva

Marvulo²,

Ferreira

et al. 2020

Transbound Emerg Dis

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Evaluation of antibodies against Toxoplasma gondii and Leptospira spp. in Magellanic penguins (Spheniscus magellanicus) on Magdalena Island, Chile

Cited by 10 publications

References 23 publications

Epidemiologic significance of Toxoplasma gondii infections in turkeys, ducks, ratites and other wild birds: 2009–2020

Epidemiologic significance of Toxoplasma gondii infections in turkeys, ducks, ratites and other wild birds: 2009–2020

Seroepidemiology of leptospirosis and molecular characterization of the first Leptospira strain isolated from Fernando de Noronha archipelago, Brazil

Seroepidemiological investigation of animal leptospirosis and molecular characterization of the first Leptospira strain isolated from Fernando de Noronha archipelago, Brazil

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