Issue |
Parasite
Volume 21, 2014
|
|
---|---|---|
Article Number | 10 | |
Number of page(s) | 3 | |
DOI | https://doi.org/10.1051/parasite/2014008 | |
Published online | 03 March 2014 |
Short Note
Prevalence of Dirofilaria immitis among shelter dogs in Tokyo, Japan, after a decade: comparison of 1999–2001 and 2009–2011
Prévalence de Dirofilaria immitis chez les chiens en chenil à Tokyo (Japon) après une décennie : comparaison de 1999–2001 et 2009–2011
1
Laboratory of Medical Zoology, Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa
252-0880, Japan
2
Tokyo Metropolitan Institute of Public Health, 3–24–1 Hyakunincho, Shinjuku, Tokyo
169-0073, Japan
3
Merial Japan Limited, 3–20–2 Nishi Shinjyuku, Shinjyuku, Tokyo
163-1488, Japan
4
Laboratory of Infectious Diseases and Immunology, College of Veterinary Medicine, Nippon Veterinary and Life Science University, 1–7–1 Kyonancho, Musashino, Tokyo
180-8602, Japan
* Corresponding author: brma12501@g.nihon-u.ac.jp
Received:
22
November
2013
Accepted:
11
February
2014
Changes in the seroprevalence of Dirofilaria immitis infection among shelter dogs between a decade ago and the present were evaluated. Serum samples were collected from 200 adult dogs in urban and suburban areas in Tokyo, Japan, during two 2-year periods (April 1999 to March 2001 and April 2009 to March 2011). Sera were tested for the presence of D. immitis antigen using a specific commercialized kit. The seroprevalence of D. immitis infection was 46% in 1999–2001 and 23% in 2009–2011. A decrease was observed in the prevalence of infection between 1999–2001 and 2009–2011; in particular, the prevalence in urban areas decreased significantly compared with that in suburban areas (P < 0.01). There was no significant difference in prevalence between the sexes in each period, but there was a significant difference between mixed-breed and purebred dogs (P < 0.01). The decrease in prevalence of canine heartworm disease in urban areas could be related to better veterinary care.
Résumé
Les changements de séroprévalence d’infection à Dirofilaria immitis parmi les chiens en chenil ont été évaluées il y a une décennie et récemment. Des sérums provenant de 200 chiens adultes ont été collectés dans des zones urbaines ou péri-urbaines de Tokyo pendant deux périodes de deux ans (Avril 1999–Mars 2001 et Avril 2009–Mars 2011). Les sérums ont été testés pour la présence d’antigènes de D. immitis. La séroprévalence de l’infection par D. immitis était de 46 % en 1999–2001 et 23 % sur la période 2009–2011. Une diminution de la prévalence a été observée entre 1999–2001 et 2009–2011. En particulier, la prévalence en zones urbaines a significativement diminué par rapport à celle des zones péri-urbaines (P < 0.01). Aucune différence significative n’a été notée entre les sexes pour chaque période mais il y avait une différence significative entre les chiens de race et les autres (P < 0.01). La diminution de prévalence de la dirofilariose canine observée en zone urbaine pourrait être liée à un meilleur suivi vétérinaire.
Key words: Canine heartworm disease / Chemoprophylaxis / Dirofilaria immitis / Dog / Epidemiology
© M. Oi et al., published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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