Coronavirus in cat flea: findings and questions regarding COVID-19

Abstract The coronavirus disease 19 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected millions of people worldwide. Recent evidence raised the question about the possibility that cats may be a domestic host for SARS-CoV-2 with unknown implication...

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Main Authors: Margarita Villar, Isabel G. Fernández de Mera, Sara Artigas-Jerónimo, Marinela Contreras, Christian Gortázar, José de la Fuente
Format: Article
Language:English
Published: BMC 2020-08-01
Series:Parasites & Vectors
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13071-020-04292-y
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author Margarita Villar
Isabel G. Fernández de Mera
Sara Artigas-Jerónimo
Marinela Contreras
Christian Gortázar
José de la Fuente
author_facet Margarita Villar
Isabel G. Fernández de Mera
Sara Artigas-Jerónimo
Marinela Contreras
Christian Gortázar
José de la Fuente
author_sort Margarita Villar
collection DOAJ
description Abstract The coronavirus disease 19 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected millions of people worldwide. Recent evidence raised the question about the possibility that cats may be a domestic host for SARS-CoV-2 with unknown implications in disease dissemination. Based on the fact that the domestic cat flea, Ctenocephalides felis, are abundant ectoparasites infesting humans, companion animals and wildlife and that coronavirus-like agents have been identified in the ectoparasite tick vector, Ixodes uriae of seabirds, herein we considered the presence of coronaviruses in general and SARS-CoV-2 in particular in C. felis. We identified coronavirus-derived and cell receptor angiotensin-converting enzyme RNA/proteins in C. felis. Although current evidence suggests that pets are probably dead-end-hosts with small risk of transmission to humans, our results suggested that cat flea may act as biological and/or mechanical vectors of SARS-CoV. Although preliminary, these results indicate a possibility of ectoparasites acting as reservoirs and vectors of SARS-CoV and related beta-coronavirus although with little disease risk due to systemic transmission route, low viremia, virus attenuation or other unknown factors. These results support the need to further study the role of animal SARS-CoV-2 hosts and their ectoparasite vectors in COVID-19 disease spread.
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spelling doaj.art-d7d9a97723a343cfb142ff45be2be3a02022-12-21T18:03:53ZengBMCParasites & Vectors1756-33052020-08-011311610.1186/s13071-020-04292-yCoronavirus in cat flea: findings and questions regarding COVID-19Margarita Villar0Isabel G. Fernández de Mera1Sara Artigas-Jerónimo2Marinela Contreras3Christian Gortázar4José de la Fuente5SaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCMSaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCMSaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCMSaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCMSaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCMSaBio. Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCMAbstract The coronavirus disease 19 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected millions of people worldwide. Recent evidence raised the question about the possibility that cats may be a domestic host for SARS-CoV-2 with unknown implications in disease dissemination. Based on the fact that the domestic cat flea, Ctenocephalides felis, are abundant ectoparasites infesting humans, companion animals and wildlife and that coronavirus-like agents have been identified in the ectoparasite tick vector, Ixodes uriae of seabirds, herein we considered the presence of coronaviruses in general and SARS-CoV-2 in particular in C. felis. We identified coronavirus-derived and cell receptor angiotensin-converting enzyme RNA/proteins in C. felis. Although current evidence suggests that pets are probably dead-end-hosts with small risk of transmission to humans, our results suggested that cat flea may act as biological and/or mechanical vectors of SARS-CoV. Although preliminary, these results indicate a possibility of ectoparasites acting as reservoirs and vectors of SARS-CoV and related beta-coronavirus although with little disease risk due to systemic transmission route, low viremia, virus attenuation or other unknown factors. These results support the need to further study the role of animal SARS-CoV-2 hosts and their ectoparasite vectors in COVID-19 disease spread.http://link.springer.com/article/10.1186/s13071-020-04292-yCoronavirusCOVID-19ArthropodFleaCatProteomics
spellingShingle Margarita Villar
Isabel G. Fernández de Mera
Sara Artigas-Jerónimo
Marinela Contreras
Christian Gortázar
José de la Fuente
Coronavirus in cat flea: findings and questions regarding COVID-19
Parasites & Vectors
Coronavirus
COVID-19
Arthropod
Flea
Cat
Proteomics
title Coronavirus in cat flea: findings and questions regarding COVID-19
title_full Coronavirus in cat flea: findings and questions regarding COVID-19
title_fullStr Coronavirus in cat flea: findings and questions regarding COVID-19
title_full_unstemmed Coronavirus in cat flea: findings and questions regarding COVID-19
title_short Coronavirus in cat flea: findings and questions regarding COVID-19
title_sort coronavirus in cat flea findings and questions regarding covid 19
topic Coronavirus
COVID-19
Arthropod
Flea
Cat
Proteomics
url http://link.springer.com/article/10.1186/s13071-020-04292-y
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AT marinelacontreras coronavirusincatfleafindingsandquestionsregardingcovid19
AT christiangortazar coronavirusincatfleafindingsandquestionsregardingcovid19
AT josedelafuente coronavirusincatfleafindingsandquestionsregardingcovid19