Molecular Epidemiology of Avian Malaria in Wild Breeding Colonies of Humboldt and Magellanic Penguins in South America

Nicole Sallaberry-Pincheira, Daniel Gonzalez-Acuña, Yertiza Herrera-Tello, Gisele P.M. Dantas, Guillermo Luna-Jorquera, Esteban Frere, Armando Valdés-Velasquez, Alejandro Simeone, Juliana A. Vianna

Resultado de la investigación: Article

5 Citas (Scopus)

Resumen

Avian malaria is a disease caused by species of the genera Haemoproteus, Leucocytozoon, and Plasmodium. It affects hundreds of bird species, causing varied clinical signs depending on the susceptibility of the host species. Although high mortality has been reported in captive penguins, limited epidemiological studies have been conducted in wild colonies, and isolated records of avian malaria have been reported mostly from individuals referred to rehabilitation centers. For this epidemiological study, we obtained blood samples from 501 adult Humboldt and 360 adult Magellanic penguins from 13 colonies throughout South America. To identify malaria parasitaemia, we amplified the mtDNA cytochrome b for all three parasite genera. Avian malaria was absent in most of the analyzed colonies, with exception of the Punta San Juan Humboldt penguin colony, in Peru, where we detected at least two new Haemoproteus lineages in three positive samples, resulting in a prevalence of 0.6% for the species. The low prevalence of avian malaria detected in wild penguins could be due to two possible causes: A low incidence, with high morbidity and mortality in wild penguins or alternatively, penguins sampled in the chronic stage of the disease (during which parasitaemia in peripheral blood samples is unlikely) would be detected as false negatives.

Idioma originalEnglish
Páginas (desde-hasta)267-277
Número de páginas11
PublicaciónEcoHealth
Volumen12
N.º2
DOI
EstadoPublished - 29 jun 2015

Huella dactilar

Avian Malaria
Spheniscidae
Molecular Epidemiology
South America
malaria
breeding population
epidemiology
Breeding
Parasitemia
blood
Epidemiologic Studies
mortality
morbidity
Rehabilitation Centers
Peru
Cytochromes b
Plasmodium
Mortality
cytochrome
Mitochondrial DNA

ASJC Scopus subject areas

  • Ecology
  • Health, Toxicology and Mutagenesis

Citar esto

Sallaberry-Pincheira, N., Gonzalez-Acuña, D., Herrera-Tello, Y., Dantas, G. P. M., Luna-Jorquera, G., Frere, E., ... Vianna, J. A. (2015). Molecular Epidemiology of Avian Malaria in Wild Breeding Colonies of Humboldt and Magellanic Penguins in South America. EcoHealth, 12(2), 267-277. https://doi.org/10.1007/s10393-014-0995-y
Sallaberry-Pincheira, Nicole ; Gonzalez-Acuña, Daniel ; Herrera-Tello, Yertiza ; Dantas, Gisele P.M. ; Luna-Jorquera, Guillermo ; Frere, Esteban ; Valdés-Velasquez, Armando ; Simeone, Alejandro ; Vianna, Juliana A. / Molecular Epidemiology of Avian Malaria in Wild Breeding Colonies of Humboldt and Magellanic Penguins in South America. En: EcoHealth. 2015 ; Vol. 12, N.º 2. pp. 267-277.
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abstract = "Avian malaria is a disease caused by species of the genera Haemoproteus, Leucocytozoon, and Plasmodium. It affects hundreds of bird species, causing varied clinical signs depending on the susceptibility of the host species. Although high mortality has been reported in captive penguins, limited epidemiological studies have been conducted in wild colonies, and isolated records of avian malaria have been reported mostly from individuals referred to rehabilitation centers. For this epidemiological study, we obtained blood samples from 501 adult Humboldt and 360 adult Magellanic penguins from 13 colonies throughout South America. To identify malaria parasitaemia, we amplified the mtDNA cytochrome b for all three parasite genera. Avian malaria was absent in most of the analyzed colonies, with exception of the Punta San Juan Humboldt penguin colony, in Peru, where we detected at least two new Haemoproteus lineages in three positive samples, resulting in a prevalence of 0.6{\%} for the species. The low prevalence of avian malaria detected in wild penguins could be due to two possible causes: A low incidence, with high morbidity and mortality in wild penguins or alternatively, penguins sampled in the chronic stage of the disease (during which parasitaemia in peripheral blood samples is unlikely) would be detected as false negatives.",
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Sallaberry-Pincheira, N, Gonzalez-Acuña, D, Herrera-Tello, Y, Dantas, GPM, Luna-Jorquera, G, Frere, E, Valdés-Velasquez, A, Simeone, A & Vianna, JA 2015, 'Molecular Epidemiology of Avian Malaria in Wild Breeding Colonies of Humboldt and Magellanic Penguins in South America', EcoHealth, vol. 12, n.º 2, pp. 267-277. https://doi.org/10.1007/s10393-014-0995-y

Molecular Epidemiology of Avian Malaria in Wild Breeding Colonies of Humboldt and Magellanic Penguins in South America. / Sallaberry-Pincheira, Nicole; Gonzalez-Acuña, Daniel; Herrera-Tello, Yertiza; Dantas, Gisele P.M.; Luna-Jorquera, Guillermo; Frere, Esteban; Valdés-Velasquez, Armando; Simeone, Alejandro; Vianna, Juliana A.

En: EcoHealth, Vol. 12, N.º 2, 29.06.2015, p. 267-277.

Resultado de la investigación: Article

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T1 - Molecular Epidemiology of Avian Malaria in Wild Breeding Colonies of Humboldt and Magellanic Penguins in South America

AU - Sallaberry-Pincheira, Nicole

AU - Gonzalez-Acuña, Daniel

AU - Herrera-Tello, Yertiza

AU - Dantas, Gisele P.M.

AU - Luna-Jorquera, Guillermo

AU - Frere, Esteban

AU - Valdés-Velasquez, Armando

AU - Simeone, Alejandro

AU - Vianna, Juliana A.

PY - 2015/6/29

Y1 - 2015/6/29

N2 - Avian malaria is a disease caused by species of the genera Haemoproteus, Leucocytozoon, and Plasmodium. It affects hundreds of bird species, causing varied clinical signs depending on the susceptibility of the host species. Although high mortality has been reported in captive penguins, limited epidemiological studies have been conducted in wild colonies, and isolated records of avian malaria have been reported mostly from individuals referred to rehabilitation centers. For this epidemiological study, we obtained blood samples from 501 adult Humboldt and 360 adult Magellanic penguins from 13 colonies throughout South America. To identify malaria parasitaemia, we amplified the mtDNA cytochrome b for all three parasite genera. Avian malaria was absent in most of the analyzed colonies, with exception of the Punta San Juan Humboldt penguin colony, in Peru, where we detected at least two new Haemoproteus lineages in three positive samples, resulting in a prevalence of 0.6% for the species. The low prevalence of avian malaria detected in wild penguins could be due to two possible causes: A low incidence, with high morbidity and mortality in wild penguins or alternatively, penguins sampled in the chronic stage of the disease (during which parasitaemia in peripheral blood samples is unlikely) would be detected as false negatives.

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KW - Haemoproteus

KW - penguins

KW - South America

KW - Spheniscus

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