Warmer weather linked to tick attack and emergence of severe rickettsioses.
The impact of climate on the vector behaviour of the worldwide dog tick Rhipicephalus sanguineus is a cause of concern. This tick is a vector for life-threatening organisms including Rickettsia rickettsii, the agent of Rocky Mountain spotted fever, R. conorii, the agent of Mediterranean spotted feve...
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ftdoajarticles:oai:doaj.org/article:a34f370b57f3409a9226f0baefb59246 2023-05-15T15:10:50+02:00 Warmer weather linked to tick attack and emergence of severe rickettsioses. Philippe Parola Cristina Socolovschi Luc Jeanjean Idir Bitam Pierre-Edouard Fournier Albert Sotto Pierre Labauge Didier Raoult 2008-01-01T00:00:00Z https://doi.org/10.1371/journal.pntd.0000338 https://doaj.org/article/a34f370b57f3409a9226f0baefb59246 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC2581602?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0000338 https://doaj.org/article/a34f370b57f3409a9226f0baefb59246 PLoS Neglected Tropical Diseases, Vol 2, Iss 11, p e338 (2008) Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 article 2008 ftdoajarticles https://doi.org/10.1371/journal.pntd.0000338 2022-12-31T12:49:24Z The impact of climate on the vector behaviour of the worldwide dog tick Rhipicephalus sanguineus is a cause of concern. This tick is a vector for life-threatening organisms including Rickettsia rickettsii, the agent of Rocky Mountain spotted fever, R. conorii, the agent of Mediterranean spotted fever, and the ubiquitous emerging pathogen R. massiliae. A focus of spotted fever was investigated in France in May 2007. Blood and tissue samples from two patients were tested. An entomological survey was organised with the study of climatic conditions. An experimental model was designed to test the affinity of Rh. sanguineus for biting humans in variable temperature conditions. Serological and/or molecular tools confirmed that one patient was infected by R. conorii, whereas the other was infected by R. massiliae. Dense populations of Rh. sanguineus were found. They were infected with new genotypes of clonal populations of either R. conorii (24/133; 18%) or R. massiliae (13/133; 10%). April 2007 was the warmest since 1950, with summer-like temperatures. We show herein that the human affinity of Rh. sanguineus was increased in warmer temperatures. In addition to the originality of theses cases (ophthalmic involvements, the second reported case of R. massiliae infection), we provide evidence that this cluster of cases was related to a warming-mediated increase in the aggressiveness of Rh. sanguineus, leading to increased human attacks. From a global perspective, we predict that as a result of globalisation and warming, more pathogens transmitted by the brown dog tick may emerge in the future. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic PLoS Neglected Tropical Diseases 2 11 e338 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
spellingShingle |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 Philippe Parola Cristina Socolovschi Luc Jeanjean Idir Bitam Pierre-Edouard Fournier Albert Sotto Pierre Labauge Didier Raoult Warmer weather linked to tick attack and emergence of severe rickettsioses. |
topic_facet |
Arctic medicine. Tropical medicine RC955-962 Public aspects of medicine RA1-1270 |
description |
The impact of climate on the vector behaviour of the worldwide dog tick Rhipicephalus sanguineus is a cause of concern. This tick is a vector for life-threatening organisms including Rickettsia rickettsii, the agent of Rocky Mountain spotted fever, R. conorii, the agent of Mediterranean spotted fever, and the ubiquitous emerging pathogen R. massiliae. A focus of spotted fever was investigated in France in May 2007. Blood and tissue samples from two patients were tested. An entomological survey was organised with the study of climatic conditions. An experimental model was designed to test the affinity of Rh. sanguineus for biting humans in variable temperature conditions. Serological and/or molecular tools confirmed that one patient was infected by R. conorii, whereas the other was infected by R. massiliae. Dense populations of Rh. sanguineus were found. They were infected with new genotypes of clonal populations of either R. conorii (24/133; 18%) or R. massiliae (13/133; 10%). April 2007 was the warmest since 1950, with summer-like temperatures. We show herein that the human affinity of Rh. sanguineus was increased in warmer temperatures. In addition to the originality of theses cases (ophthalmic involvements, the second reported case of R. massiliae infection), we provide evidence that this cluster of cases was related to a warming-mediated increase in the aggressiveness of Rh. sanguineus, leading to increased human attacks. From a global perspective, we predict that as a result of globalisation and warming, more pathogens transmitted by the brown dog tick may emerge in the future. |
format |
Article in Journal/Newspaper |
author |
Philippe Parola Cristina Socolovschi Luc Jeanjean Idir Bitam Pierre-Edouard Fournier Albert Sotto Pierre Labauge Didier Raoult |
author_facet |
Philippe Parola Cristina Socolovschi Luc Jeanjean Idir Bitam Pierre-Edouard Fournier Albert Sotto Pierre Labauge Didier Raoult |
author_sort |
Philippe Parola |
title |
Warmer weather linked to tick attack and emergence of severe rickettsioses. |
title_short |
Warmer weather linked to tick attack and emergence of severe rickettsioses. |
title_full |
Warmer weather linked to tick attack and emergence of severe rickettsioses. |
title_fullStr |
Warmer weather linked to tick attack and emergence of severe rickettsioses. |
title_full_unstemmed |
Warmer weather linked to tick attack and emergence of severe rickettsioses. |
title_sort |
warmer weather linked to tick attack and emergence of severe rickettsioses. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2008 |
url |
https://doi.org/10.1371/journal.pntd.0000338 https://doaj.org/article/a34f370b57f3409a9226f0baefb59246 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
PLoS Neglected Tropical Diseases, Vol 2, Iss 11, p e338 (2008) |
op_relation |
http://europepmc.org/articles/PMC2581602?pdf=render https://doaj.org/toc/1935-2727 https://doaj.org/toc/1935-2735 1935-2727 1935-2735 doi:10.1371/journal.pntd.0000338 https://doaj.org/article/a34f370b57f3409a9226f0baefb59246 |
op_doi |
https://doi.org/10.1371/journal.pntd.0000338 |
container_title |
PLoS Neglected Tropical Diseases |
container_volume |
2 |
container_issue |
11 |
container_start_page |
e338 |
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1766341782889562112 |