Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017)
Background: Leptospirosis is a widespread zoonotic disease caused by pathogenic Leptospira and is responsible for significant economic porcine livestock losses. Knowledge of Leptospira serogroups and their distributions is important for evaluation of the relevance of leptospirosis management measures, including use of the prophylactic vaccine that was recently made available in France. A retrospective study was conducted to determine the relationships between different circulating Leptospira serogroups. Pigs from across France presenting clinical signs suggestive of leptospirosis were tested with the microagglutination test (MAT) between 2011 and 2017. We used weighted averages to determine serogroup distributions according to MAT results and considering cross-reactions. Results: A total of 19,395 pig sera, mostly from Brittany, were tested, and 22.7% were found to be positive for at least one Leptospira serogroup. Analysis of the 4,346 seropositive results for which the putative infective serogroup could be defined, revealed that two out of ten serogroups were much more frequent than the others: Australis (48.5%) and Icterohaemorrhagiae (38.2%). Other serogroups, including Autumnalis, Panama, Ballum, Tarassovi, Sejroe, Grippotyphosa, Bataviae, and Pomona, were less common. Conclusions: Although diagnostic laboratory data cannot be extrapolated to infer the distribution of Leptospira serogroups at the nationwide scale in France, the analysis of such data can provide an overview of the relationship between circulating Leptospira serogroups in space and time. During the last decade, protection against the serogroups Australis and Icterohaemorrhagiae would have prevented most of the clinical porcine leptospirosis cases in the large number of farms that we studied. In the future, epidemiological information related to circulating Leptospira serogroups should be extracted from data with a standardized approach for use in nationwide or international surveillance and prophylactic strategy support.
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Subjects: | L73 - Maladies des animaux, U30 - Méthodes de recherche, Leptospira, porcin, sérologie, distribution des populations, épidémiologie, prophylaxie des maladies, http://aims.fao.org/aos/agrovoc/c_4280, http://aims.fao.org/aos/agrovoc/c_7555, http://aims.fao.org/aos/agrovoc/c_27081, http://aims.fao.org/aos/agrovoc/c_6113, http://aims.fao.org/aos/agrovoc/c_2615, http://aims.fao.org/aos/agrovoc/c_13610, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/600702/ http://agritrop.cirad.fr/600702/1/s40813-022-00257-y.pdf |
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dig-cirad-fr-6007022024-01-29T19:05:36Z http://agritrop.cirad.fr/600702/ http://agritrop.cirad.fr/600702/ Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017). Naudet Jeanne, Crespin Laurent, Cappelle Julien, Kodjo Angeli, Ayral Florence. 2022. Porcine Health Management, 8:15, 9 p.https://doi.org/10.1186/s40813-022-00257-y <https://doi.org/10.1186/s40813-022-00257-y> Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017) Naudet, Jeanne Crespin, Laurent Cappelle, Julien Kodjo, Angeli Ayral, Florence eng 2022 Porcine Health Management L73 - Maladies des animaux U30 - Méthodes de recherche Leptospira porcin sérologie distribution des populations épidémiologie prophylaxie des maladies http://aims.fao.org/aos/agrovoc/c_4280 http://aims.fao.org/aos/agrovoc/c_7555 http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_13610 France http://aims.fao.org/aos/agrovoc/c_3081 Background: Leptospirosis is a widespread zoonotic disease caused by pathogenic Leptospira and is responsible for significant economic porcine livestock losses. Knowledge of Leptospira serogroups and their distributions is important for evaluation of the relevance of leptospirosis management measures, including use of the prophylactic vaccine that was recently made available in France. A retrospective study was conducted to determine the relationships between different circulating Leptospira serogroups. Pigs from across France presenting clinical signs suggestive of leptospirosis were tested with the microagglutination test (MAT) between 2011 and 2017. We used weighted averages to determine serogroup distributions according to MAT results and considering cross-reactions. Results: A total of 19,395 pig sera, mostly from Brittany, were tested, and 22.7% were found to be positive for at least one Leptospira serogroup. Analysis of the 4,346 seropositive results for which the putative infective serogroup could be defined, revealed that two out of ten serogroups were much more frequent than the others: Australis (48.5%) and Icterohaemorrhagiae (38.2%). Other serogroups, including Autumnalis, Panama, Ballum, Tarassovi, Sejroe, Grippotyphosa, Bataviae, and Pomona, were less common. Conclusions: Although diagnostic laboratory data cannot be extrapolated to infer the distribution of Leptospira serogroups at the nationwide scale in France, the analysis of such data can provide an overview of the relationship between circulating Leptospira serogroups in space and time. During the last decade, protection against the serogroups Australis and Icterohaemorrhagiae would have prevented most of the clinical porcine leptospirosis cases in the large number of farms that we studied. In the future, epidemiological information related to circulating Leptospira serogroups should be extracted from data with a standardized approach for use in nationwide or international surveillance and prophylactic strategy support. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/600702/1/s40813-022-00257-y.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.1186/s40813-022-00257-y 10.1186/s40813-022-00257-y info:eu-repo/semantics/altIdentifier/doi/10.1186/s40813-022-00257-y info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1186/s40813-022-00257-y |
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L73 - Maladies des animaux U30 - Méthodes de recherche Leptospira porcin sérologie distribution des populations épidémiologie prophylaxie des maladies http://aims.fao.org/aos/agrovoc/c_4280 http://aims.fao.org/aos/agrovoc/c_7555 http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_13610 http://aims.fao.org/aos/agrovoc/c_3081 L73 - Maladies des animaux U30 - Méthodes de recherche Leptospira porcin sérologie distribution des populations épidémiologie prophylaxie des maladies http://aims.fao.org/aos/agrovoc/c_4280 http://aims.fao.org/aos/agrovoc/c_7555 http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_13610 http://aims.fao.org/aos/agrovoc/c_3081 |
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L73 - Maladies des animaux U30 - Méthodes de recherche Leptospira porcin sérologie distribution des populations épidémiologie prophylaxie des maladies http://aims.fao.org/aos/agrovoc/c_4280 http://aims.fao.org/aos/agrovoc/c_7555 http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_13610 http://aims.fao.org/aos/agrovoc/c_3081 L73 - Maladies des animaux U30 - Méthodes de recherche Leptospira porcin sérologie distribution des populations épidémiologie prophylaxie des maladies http://aims.fao.org/aos/agrovoc/c_4280 http://aims.fao.org/aos/agrovoc/c_7555 http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_13610 http://aims.fao.org/aos/agrovoc/c_3081 Naudet, Jeanne Crespin, Laurent Cappelle, Julien Kodjo, Angeli Ayral, Florence Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017) |
description |
Background: Leptospirosis is a widespread zoonotic disease caused by pathogenic Leptospira and is responsible for significant economic porcine livestock losses. Knowledge of Leptospira serogroups and their distributions is important for evaluation of the relevance of leptospirosis management measures, including use of the prophylactic vaccine that was recently made available in France. A retrospective study was conducted to determine the relationships between different circulating Leptospira serogroups. Pigs from across France presenting clinical signs suggestive of leptospirosis were tested with the microagglutination test (MAT) between 2011 and 2017. We used weighted averages to determine serogroup distributions according to MAT results and considering cross-reactions. Results: A total of 19,395 pig sera, mostly from Brittany, were tested, and 22.7% were found to be positive for at least one Leptospira serogroup. Analysis of the 4,346 seropositive results for which the putative infective serogroup could be defined, revealed that two out of ten serogroups were much more frequent than the others: Australis (48.5%) and Icterohaemorrhagiae (38.2%). Other serogroups, including Autumnalis, Panama, Ballum, Tarassovi, Sejroe, Grippotyphosa, Bataviae, and Pomona, were less common. Conclusions: Although diagnostic laboratory data cannot be extrapolated to infer the distribution of Leptospira serogroups at the nationwide scale in France, the analysis of such data can provide an overview of the relationship between circulating Leptospira serogroups in space and time. During the last decade, protection against the serogroups Australis and Icterohaemorrhagiae would have prevented most of the clinical porcine leptospirosis cases in the large number of farms that we studied. In the future, epidemiological information related to circulating Leptospira serogroups should be extracted from data with a standardized approach for use in nationwide or international surveillance and prophylactic strategy support. |
format |
article |
topic_facet |
L73 - Maladies des animaux U30 - Méthodes de recherche Leptospira porcin sérologie distribution des populations épidémiologie prophylaxie des maladies http://aims.fao.org/aos/agrovoc/c_4280 http://aims.fao.org/aos/agrovoc/c_7555 http://aims.fao.org/aos/agrovoc/c_27081 http://aims.fao.org/aos/agrovoc/c_6113 http://aims.fao.org/aos/agrovoc/c_2615 http://aims.fao.org/aos/agrovoc/c_13610 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Naudet, Jeanne Crespin, Laurent Cappelle, Julien Kodjo, Angeli Ayral, Florence |
author_facet |
Naudet, Jeanne Crespin, Laurent Cappelle, Julien Kodjo, Angeli Ayral, Florence |
author_sort |
Naudet, Jeanne |
title |
Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017) |
title_short |
Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017) |
title_full |
Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017) |
title_fullStr |
Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017) |
title_full_unstemmed |
Circulating serogroups of Leptospira in swine from a 7-year study in France (2011–2017) |
title_sort |
circulating serogroups of leptospira in swine from a 7-year study in france (2011–2017) |
url |
http://agritrop.cirad.fr/600702/ http://agritrop.cirad.fr/600702/1/s40813-022-00257-y.pdf |
work_keys_str_mv |
AT naudetjeanne circulatingserogroupsofleptospirainswinefroma7yearstudyinfrance20112017 AT crespinlaurent circulatingserogroupsofleptospirainswinefroma7yearstudyinfrance20112017 AT cappellejulien circulatingserogroupsofleptospirainswinefroma7yearstudyinfrance20112017 AT kodjoangeli circulatingserogroupsofleptospirainswinefroma7yearstudyinfrance20112017 AT ayralflorence circulatingserogroupsofleptospirainswinefroma7yearstudyinfrance20112017 |
_version_ |
1792500332640600064 |