Comparison of Toxoplasma gondii Seroprevalence in Shelter Cats and Dogs during 1999–2001 and 2009–2011 in Tokyo, Japan

Oi, Masaaki; Yoshikawa, Souichi; Maruyama, Soichi; Nogami, Shinnosuke

doi:10.1371/journal.pone.0135956

Cited by 32 publications

(34 citation statements)

References 20 publications

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“…The present survey showed that T. gondii seroprevalence in cats in rural areas was significantly higher compared to urban cats ( p < 0.01), which is consistent with reports by other authors [1, 10]. The difference in seroprevalence in urban and rural areas might be explained by differences in local reservoirs of the parasite, both in prey animals and in the environment, which serve as local infection sources for the cats.…”

Section: Discussionsupporting

confidence: 91%

Seroprevalence ofToxoplasma gondiiinfection in domestic cats in central China

et al. 2017

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To investigate the seroprevalence of Toxoplasma gondii infection in domestic cats in central China, 843 serum samples were collected in Henan province between March 2015 and May 2016 and tested for IgG antibodies against T. gondii using the enzyme-linked immunosorbent assay (ELISA). The overall seroprevalence of T. gondii was 21% (178/843). No significant difference was observed based on the sex of cats (p > 0.05). Significantly higher seroprevalence (p < 0.05) was observed in mixed-breed cats (24%) compared to purebred cats (17%). Seroprevalence in rural cats (29%) was significantly higher (p < 0.01) than in urban cats (16%), and increased significantly (p < 0.01) with age. These results showed that T. gondii was highly prevalent in domestic cats in Henan province, central China, which might have important implications for public health.

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Section: Discussionsupporting

confidence: 91%

Seroprevalence ofToxoplasma gondiiinfection in domestic cats in central China

et al. 2017

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“…For two pathogens with environmental transmission, T. gondii and FPV, we also predicted its prevalence to be positively associated with the PD of cats. In the case of T. gondii, the overall number of positive individuals was low in general ( Table 3 ), similar to other studies on T. gondii prevalence in urban stray cats, which ranged from 5.61 to 14.3% ( Lee et al, 2011 ; Wang et al, 2012 ; Oi et al, 2015 ). Additionally, its prevalence did not show any significant association with PD or CCA.…”

Section: Discussionsupporting

confidence: 87%

Disentangling the link between supplemental feeding, population density, and the prevalence of pathogens in urban stray cats

Hwang

Gottdenker

et al. 2018

PeerJ

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BackgroundSupplemental feeding of free-roaming animals, including wildlife and feral or stray animals, is well known to have a substantial impact on various aspects of animal ecology including habitat use, activity patterns, and host-pathogen interactions. Among them, an increased population density (PD) of animals receiving supplemental food raises concerns regarding the transmission of pathogens in these host populations. The primary aim of this study was to investigate how supplemental feeding is associated with host PD and prevalence of pathogens with different transmission modes in urban stray cats. We hypothesized that supplemental feeding would be positively associated with host PD and the prevalence of pathogens with density-dependent transmission modes compared with pathogens with transmission modes that are considered relatively density-independent.MethodsThis study was conducted in six districts in Seoul, Republic of Korea which were selected based on different degrees of supplemental feeding and cat caretaker activity (CCA). The PD of stray cats was estimated by mark-recapture surveys. Stray cat blood samples (N = 302) were collected from stray cats by local animal hospitals from each district performing the trap-neuter-release which tested for eight pathogens with different transmission modes (feline immunodeficiency virus, feline leukemia virus (FeLV), feline panleukopenia virus, feline calicivirus, feline herpesvirus-1, Bartonella henselae, hemoplasma, and Toxoplasma gondii) with molecular or serological assays. Associations between the prevalence of each pathogen and PD, CCA, and sex of cats were statistically analyzed.ResultsIn contrast to initial predictions, the cat PD was generally higher in low CCA districts. The prevalence of (FeLV), which is transmitted through direct contact, was significantly higher in areas with a high CCA, conforming to our hypothesis. On the other hand, the prevalence of feline parvovirus, which can be spread by environmental transmission, was higher in low CCA districts. The remaining six pathogens did not show any association with the CCA; however, they had a unique association with the PD or the sex of the stray cats.DiscussionOur findings suggest that in addition to influencing the PD, supplemental feeding may affect the prevalence of pathogens in urban animals by mechanisms such as increased aggregation and/or altered foraging strategies, with different consequences depending on the transmission mode of each pathogen.

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“…The prevalence varied by area of the island (5.1–19.6%). In epidemiological studies in other countries, the T. gondii antibody seroprevalence among cats in rural areas has tended to be higher than that in urban cats [ 6 , 10 ]. In our present study, there was a similar tendency.…”

mentioning

confidence: 99%

Seroprevalence of <i>Toxoplasma gondii</i> in free-ranging and feral cats on Amami Oshima Island, Japan

Matsuu

Yokota

Itō³

et al. 2017

The Journal of Veterinary Medical Science

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On Amami Oshima Island, free-ranging and feral cats are harmful to wildlife populations. In this study, the seroprevalence of Toxoplasma gondii in these cats was examined using a newly developed Gaussia luciferase immunoprecipitation system assay. Of 1,363 cats, 123 cats (9.0%) was positive for T. gondii. The prevalence was significantly different in different areas; among cats in the rural area, where many wild animals live, including endangered species, T. gondii infection was more prevalent than in the urban area of the island. This finding indicates a possible risk to wildlife of infection from free-ranging and feral cats. Therefore, management of cats is important for wildlife conservation.

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Comparison of Toxoplasma gondii Seroprevalence in Shelter Cats and Dogs during 1999–2001 and 2009–2011 in Tokyo, Japan

Cited by 32 publications

References 20 publications

Seroprevalence ofToxoplasma gondiiinfection in domestic cats in central China

Seroprevalence ofToxoplasma gondiiinfection in domestic cats in central China

Disentangling the link between supplemental feeding, population density, and the prevalence of pathogens in urban stray cats

Seroprevalence of <i>Toxoplasma gondii</i> in free-ranging and feral cats on Amami Oshima Island, Japan

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