Rattus norvegicus como indicador de la circulación de Capillaria hepatica y Taenia taeniaeformis en la plaza minorista de medellín, Colombia

Translated title of the contribution: Rattus norvegicus as an indicator of circulation of Capillaria hepatica and Taenia taeniaeformis on a groceries trade center of medellín, Colombia

Biviana Andrea Duque, Diego Aranzazu, Piedad Agudelo-Flórez, Andrés F. Londoño, Víctor H. Quiroz, Juan D. Rodas

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Introduction. Rattus norvegicus, the Norway rat, plays a pivotal role in the maintenance and spread of several zoonotic bacterial, viral and parasitic pathogens of public health interest. The presence of helminthic infections near susceptible human populations can, under appropriate environmental conditions, become a risk factor for their transmission. Objective. Frequencies of infection were reported for Capillaria hepatica and larval forms of Taenia taeniaeformis in wild rats (R. norvegicus) captured in an urban area. Materials and methods. Two hundred and fifty-four adult specimens of R. norvegicus were collected in an urban zone of Medellín, Colombia. The livers of 54 specimens that showed macroscopic hepatic lesions during necropsy were examined by conventional histopathology. Results. The frequency of infestation with C. hepatica was 20.1% (51/254). Six livers (2.4%) were also positive for larvae of T. taeniaeformis. Livers infested with C. hepatica exhibited adult or juvenile parasites and oval eggs with bipolar opercula, and were associated with mild to moderate multifocal granulomatous hepatitis with leucocyte infiltrate. Granulomatous lesions and calcified residual fibroses were found with eggs but without adult parasites. Those animals with cysticerci of T. taeniaeformis showed a high frequency of hepatic cysts containing larvae as well as inflammed and fibrotic lesions. Conclusion. Zoonotic helminths circulate at high frequency in R. norvegicus that occur in urban environments. Further research about the distribution of these parasites will determine the level of health threat they present for susceptible human and domestic animal populations.

Original languageSpanish
Pages (from-to)510-518
Number of pages9
JournalBiomedica
Volume32
Issue number4
DOIs
StatePublished - Dec 1 2012
Externally publishedYes

Fingerprint

Capillaria
Taenia
Colombia
Liver
Rats
Animals
Parasites
Zoonoses
Public health
Pathogens
Eggs
Larva
Health
Cysticercus
Helminths
Domestic Animals
Infection
Hepatitis
Population
Health Status

Keywords

  • Helminths
  • Liver diseases
  • Parasitic
  • Rats
  • Reservoirs
  • Zoonoses

ASJC Scopus subject areas

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Rattus norvegicus como indicador de la circulación de Capillaria hepatica y Taenia taeniaeformis en la plaza minorista de medellín, Colombia. / Duque, Biviana Andrea; Aranzazu, Diego; Agudelo-Flórez, Piedad; Londoño, Andrés F.; Quiroz, Víctor H.; Rodas, Juan D.

In: Biomedica, Vol. 32, No. 4, 01.12.2012, p. 510-518.

Research output: Contribution to journalArticle

Duque, Biviana Andrea ; Aranzazu, Diego ; Agudelo-Flórez, Piedad ; Londoño, Andrés F. ; Quiroz, Víctor H. ; Rodas, Juan D. / Rattus norvegicus como indicador de la circulación de Capillaria hepatica y Taenia taeniaeformis en la plaza minorista de medellín, Colombia. In: Biomedica. 2012 ; Vol. 32, No. 4. pp. 510-518.
@article{b33d4e8766734c92830a83acb6a5e845,
title = "Rattus norvegicus como indicador de la circulaci{\'o}n de Capillaria hepatica y Taenia taeniaeformis en la plaza minorista de medell{\'i}n, Colombia",
abstract = "Introduction. Rattus norvegicus, the Norway rat, plays a pivotal role in the maintenance and spread of several zoonotic bacterial, viral and parasitic pathogens of public health interest. The presence of helminthic infections near susceptible human populations can, under appropriate environmental conditions, become a risk factor for their transmission. Objective. Frequencies of infection were reported for Capillaria hepatica and larval forms of Taenia taeniaeformis in wild rats (R. norvegicus) captured in an urban area. Materials and methods. Two hundred and fifty-four adult specimens of R. norvegicus were collected in an urban zone of Medell{\'i}n, Colombia. The livers of 54 specimens that showed macroscopic hepatic lesions during necropsy were examined by conventional histopathology. Results. The frequency of infestation with C. hepatica was 20.1{\%} (51/254). Six livers (2.4{\%}) were also positive for larvae of T. taeniaeformis. Livers infested with C. hepatica exhibited adult or juvenile parasites and oval eggs with bipolar opercula, and were associated with mild to moderate multifocal granulomatous hepatitis with leucocyte infiltrate. Granulomatous lesions and calcified residual fibroses were found with eggs but without adult parasites. Those animals with cysticerci of T. taeniaeformis showed a high frequency of hepatic cysts containing larvae as well as inflammed and fibrotic lesions. Conclusion. Zoonotic helminths circulate at high frequency in R. norvegicus that occur in urban environments. Further research about the distribution of these parasites will determine the level of health threat they present for susceptible human and domestic animal populations.",
keywords = "Helminths, Liver diseases, Parasitic, Rats, Reservoirs, Zoonoses",
author = "Duque, {Biviana Andrea} and Diego Aranzazu and Piedad Agudelo-Fl{\'o}rez and Londo{\~n}o, {Andr{\'e}s F.} and Quiroz, {V{\'i}ctor H.} and Rodas, {Juan D.}",
year = "2012",
month = "12",
day = "1",
doi = "10.7705/biomedica.v32i4.442",
language = "Spanish",
volume = "32",
pages = "510--518",
journal = "Biomedica",
issn = "0120-4157",
publisher = "Instituto Nacional de Salud",
number = "4",

}

TY - JOUR

T1 - Rattus norvegicus como indicador de la circulación de Capillaria hepatica y Taenia taeniaeformis en la plaza minorista de medellín, Colombia

AU - Duque, Biviana Andrea

AU - Aranzazu, Diego

AU - Agudelo-Flórez, Piedad

AU - Londoño, Andrés F.

AU - Quiroz, Víctor H.

AU - Rodas, Juan D.

PY - 2012/12/1

Y1 - 2012/12/1

N2 - Introduction. Rattus norvegicus, the Norway rat, plays a pivotal role in the maintenance and spread of several zoonotic bacterial, viral and parasitic pathogens of public health interest. The presence of helminthic infections near susceptible human populations can, under appropriate environmental conditions, become a risk factor for their transmission. Objective. Frequencies of infection were reported for Capillaria hepatica and larval forms of Taenia taeniaeformis in wild rats (R. norvegicus) captured in an urban area. Materials and methods. Two hundred and fifty-four adult specimens of R. norvegicus were collected in an urban zone of Medellín, Colombia. The livers of 54 specimens that showed macroscopic hepatic lesions during necropsy were examined by conventional histopathology. Results. The frequency of infestation with C. hepatica was 20.1% (51/254). Six livers (2.4%) were also positive for larvae of T. taeniaeformis. Livers infested with C. hepatica exhibited adult or juvenile parasites and oval eggs with bipolar opercula, and were associated with mild to moderate multifocal granulomatous hepatitis with leucocyte infiltrate. Granulomatous lesions and calcified residual fibroses were found with eggs but without adult parasites. Those animals with cysticerci of T. taeniaeformis showed a high frequency of hepatic cysts containing larvae as well as inflammed and fibrotic lesions. Conclusion. Zoonotic helminths circulate at high frequency in R. norvegicus that occur in urban environments. Further research about the distribution of these parasites will determine the level of health threat they present for susceptible human and domestic animal populations.

AB - Introduction. Rattus norvegicus, the Norway rat, plays a pivotal role in the maintenance and spread of several zoonotic bacterial, viral and parasitic pathogens of public health interest. The presence of helminthic infections near susceptible human populations can, under appropriate environmental conditions, become a risk factor for their transmission. Objective. Frequencies of infection were reported for Capillaria hepatica and larval forms of Taenia taeniaeformis in wild rats (R. norvegicus) captured in an urban area. Materials and methods. Two hundred and fifty-four adult specimens of R. norvegicus were collected in an urban zone of Medellín, Colombia. The livers of 54 specimens that showed macroscopic hepatic lesions during necropsy were examined by conventional histopathology. Results. The frequency of infestation with C. hepatica was 20.1% (51/254). Six livers (2.4%) were also positive for larvae of T. taeniaeformis. Livers infested with C. hepatica exhibited adult or juvenile parasites and oval eggs with bipolar opercula, and were associated with mild to moderate multifocal granulomatous hepatitis with leucocyte infiltrate. Granulomatous lesions and calcified residual fibroses were found with eggs but without adult parasites. Those animals with cysticerci of T. taeniaeformis showed a high frequency of hepatic cysts containing larvae as well as inflammed and fibrotic lesions. Conclusion. Zoonotic helminths circulate at high frequency in R. norvegicus that occur in urban environments. Further research about the distribution of these parasites will determine the level of health threat they present for susceptible human and domestic animal populations.

KW - Helminths

KW - Liver diseases

KW - Parasitic

KW - Rats

KW - Reservoirs

KW - Zoonoses

UR - http://www.scopus.com/inward/record.url?scp=84877106587&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877106587&partnerID=8YFLogxK

U2 - 10.7705/biomedica.v32i4.442

DO - 10.7705/biomedica.v32i4.442

M3 - Article

VL - 32

SP - 510

EP - 518

JO - Biomedica

JF - Biomedica

SN - 0120-4157

IS - 4

ER -