Seroprevalence of Toxoplasma Gondii Antibodies Among Atayal Aboriginal People and Their Hunting Dogs in Northeastern Taiwan

Fan, Chia Kwung; Su, Kang‐Yi; Chung, W. C.; Tsai, Yu Jen; Chiou, Hung Yi; Lin, Chin Forng; Su, Chien Tien; Tsai, Ming-Chuan; Chao, Pan Hua

doi:10.7883/yoken1952.51.35

Cited by 23 publications

(17 citation statements)

References 12 publications

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“…The prevalence of antibodies against T. gondii found in our study is in the range of seroprevalence found in 51 hunting dogs (20%) from the northeastern Taiwan (Fan et al 1998) and 59 hunting dogs (31%) from Trinidad and Tobago (Ali et al 2003). To our knowledge this is the first study of seroprevalence of T. gondii on the population of hunting dogs, and in general in canine species, in Italy.…”

Section: Discussionsupporting

confidence: 60%

Seroprevalence and risk factors of infections with Neospora caninum and Toxoplasma gondii in hunting dogs from Campania region, southern Italy

et al. 2016

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Abstract:Hunting dogs have probably a higher level of exposure to Neospora caninum Dubey, Carpenter, Speer, Topper et Uggla, 1988 and Toxoplasma gondii Nicolle et Manceaux, 1908 than other canine populations for their different lifestyle. The aim of our survey was to determine the seroprevalence of N. caninum and T. gondii in hunting dogs from southern Italy and assess risk factors related to these protozoan infections. Blood samples were collected from 398 hunting dogs (19 different breeds, aged from 5 month to 14 years). The sera were screened by indirect fluorescence antibody test; a titre ≥ 50 was considered positive. Antibodies to N. caninum and T. gondii were detected in 59 (15%) dogs with titres from 50 to 3 200 and in 94 (24%) dogs with titres from 50 to 1 600, respectively, with co-infection in 25 (6%) dogs. Statistical difference (p ≤ 0.05) was found only for infection with T. gondii between two age groups: ≥ 2-4 years (16%) and ≥ 4-7 years (33%); other observed characteristics were without statistical significance. Our results suggest that the hunting dogs could play an important role in the transmission cycle of N. caninum between wild animals and livestock. This is the first detection of antibodies to T. gondii in hunting dogs in Italy.

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Section: Discussionsupporting

confidence: 60%

Seroprevalence and risk factors of infections with Neospora caninum and Toxoplasma gondii in hunting dogs from Campania region, southern Italy

et al. 2016

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“…Compared with neighboring countries, the overall seroprevalence in the present study was similar to that reported in Japan (10.3z) (13), and in Changchun, northern China Toxoplasma in Pregnant Women in Taipei City (10.6z) (16); however, the overall seroprevalence in the present study was higher than that reported in South Korea (4z) (12). The difference in seroprevalence among pregnant women in different districts may be attributable to the habits of aboriginal Taiwanese populations of consuming raw liver or other meat products from pigs and rats, as well as to their low economic status, leading to increased risks of infection with toxoplasmosis (22,24,25); however, immigrant pregnant women may be susceptible to toxoplasmosis because of poor hygiene habits associated with their low socioeconomic status, resulting in a high seroprevalence (22). Nevertheless, immigrant pregnant women may have been infected before they came to Taiwan and should not be ignored.…”

Section: Discussioncontrasting

confidence: 57%

Seroprevalence, Seroconversion, and Risk Factors for Toxoplasmosis among Pregnant Women in Taipei, Taiwan

Hung

Lee

et al. 2015

Jpn J Infect Dis

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SUMMARY: Herein, we determined the seroprevalence, seroconversion, and risk factors associated with Toxoplasma gondii (T. gondii) infection among pregnant women in Taipei, Taiwan. Pregnant women attending antenatal consultation in a Taipei medical center were invited, and 104 women completed a self-administered structured questionnaire. Venous blood samples were collected during the first and third trimester after consent was obtained. Serum IgG and IgM antibodies (Abs) as well as IgG avidity were analyzed using an enzyme-linked fluorescent assay. Of the samples collected in the first trimester, seven were seropositive for IgG Abs and one was seropositive for IgG ＋ IgM Abs with a borderline avidity index, resulting in an overall seroprevalence of 7.7z. No statistically significant association was found between toxoplasmosis and age, pregnancy history, or any risk factors. Seroconversion was not detected from paired sera between the first and third trimesters. Pregnant women with senior high school education level or those who claimed to knowing Toxoplasma exhibited a significantly higher seroprevalence than those with bachelor degree (P ＝ 0.05) or those who claimed not to have this knowledge (P ＝ 0.05). Therefore, failure to understand the importance of T. gondii infection and the prevention measures resulted in the development of toxoplasmosis among these women.

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“…15 However, other studies among Taiwan indigenous people have reported a lower seroprevalence of 19.4% to 21.8% in Atayal, 16 26.7% in Paiwan, 17 and 9.1% in Akka 17 subgroups. In contrast, seroprevalence rates among indigenous people in Brazil 18 and Venezuela [19][20][21][22][23] have been relatively high: 73.5% and up to 88.0%, respectively.…”

Section: Discussionmentioning

confidence: 87%

Seroprevalence and Sources of Toxoplasmosis among Orang Asli (Indigenous) Communities in Peninsular Malaysia

Ngui

Lim²,

Amir³

et al. 2011

The American Society of Tropical Medicine and Hygiene

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This study aims to evaluate the current seroprevalence of toxoplasmosis among indigenous communities in Peninsular Malaysia and relate its association with epidemiological data. Overall seroprevalence of Toxoplasma gondii was 37.0% with 31.0% immunoglobulin (Ig) G, 1.8% IgM, and 4.2% seropositivity for both anti-Toxoplasma antibodies. Multivariate analysis showed that age above 12 years (odds ratio [OR] = 2.70, 95% confidence interval [CI] = 1.75–4.04, P < 0.001), using untreated river and mountain water supplies (OR = 1.50, 95% CI = 1.01–2.40, P = 0.050), and close proximity with cats (OR = 1.40, 95% CI = 1.10–1.76, P = 0.010) were factors associated with toxoplasmosis. Given the high seroprevalence of toxoplasmosis among these communities who live in poor socioeconomic conditions, a comprehensive health surveillance program and screening should be initiated among women of childbearing age and pregnant women during the antenatal period for early diagnosis and treatment. The role of domestic cats and environmental contamination with oocyst in soil and water has to be highlighted and addressed in future prevention strategies for these communities.

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Seroprevalence of Toxoplasma Gondii Antibodies Among Atayal Aboriginal People and Their Hunting Dogs in Northeastern Taiwan

Cited by 23 publications

References 12 publications

Seroprevalence and risk factors of infections with Neospora caninum and Toxoplasma gondii in hunting dogs from Campania region, southern Italy

Seroprevalence and risk factors of infections with Neospora caninum and Toxoplasma gondii in hunting dogs from Campania region, southern Italy

Seroprevalence, Seroconversion, and Risk Factors for Toxoplasmosis among Pregnant Women in Taipei, Taiwan

Seroprevalence and Sources of Toxoplasmosis among Orang Asli (Indigenous) Communities in Peninsular Malaysia

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