A high prevalence of Toxoplasma in Australian chickens

Chumpolbanchorn, Kamlang; Lymbery, Alan J.; Pallant, Louise; Pan, Shuting; Sukthana, Yaowalark; Thompson, R.C.A.

doi:10.1016/j.vetpar.2013.01.009

Cited by 14 publications

(7 citation statements)

References 25 publications

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“…It is known that T. gondii may infect chicken brains [22], and such tissue is frequently selected to search for T. gondii cysts [23,24]. Nested polymerase chain reaction (PCR) has demonstrated T. gondii DNA in brains of chickens [25]. Therefore, results of the present study suggest that consumption of chicken brains represents a new risk factor for T. gondii infection, and such risk might be higher than consumption of chicken fl esh.…”

Section: Discussionmentioning

confidence: 69%

Miscarriage history andToxoplasma gondii infection: A cross-sectional study in women in Durango City, Mexico

Alvarado‐Esquivel¹,

Pacheco-Vega²,

Hernández‐Tinoco³

et al. 2014

European Journal of Microbiology and Immunology

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Through a cross-sectional study design, 326 women with a history of miscarriage were examined for anti-Toxoplasma gondii IgG and IgM antibodies in Durango City, Mexico. Prevalence association with sociodemographic, clinical, and behavioral characteristics in women with miscarriage was also investigated. Twenty-two (6.7%) of the 326 women studied had anti-T. gondii IgG antibodies and two (0.6%) were also positive for anti-T. gondii IgM antibodies. Seroprevalence of T. gondii infection was not influenced by age, birth place, occupation, educational level, or socioeconomic status. In contrast, logistic regression showed that T. gondii exposure was associated with consumption of raw or undercooked meat (OR = 6.84; 95% CI: 1.04-44.95; P = 0.04) and consumption of chicken brains (OR = 18.48; 95% CI: 1.26-269.43; P = 0.03). This is the first study on the seroepidemiology of T. gondii infection in women with a history of miscarriage in Northern Mexico. Of interest, we also observed an association of T. gondii exposure with consumption of chicken brains. Contributing factors for T. gondii exposure found in the present study should be taken into consideration for public health measures to avoid infection with T. gondii and its sequelae.

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Section: Discussionmentioning

confidence: 69%

Miscarriage history andToxoplasma gondii infection: A cross-sectional study in women in Durango City, Mexico

Alvarado‐Esquivel¹,

Pacheco-Vega²,

Hernández‐Tinoco³

et al. 2014

European Journal of Microbiology and Immunology

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“…However, a higher prevalence was found by Chumpolbanchorn et al . ( 5 ) in Australia and by Pardini et al . ( 21 ) in Argentina, where respectively 44% (22/50) and 30.3% (10/33) of tissue samples analysed were positive by PCR.…”

Section: Discussionmentioning

confidence: 89%

“…In recent years, several studies have been conducted to detect the prevalence of T. gondii infection in chicken meat ( 5 , 14 , 21 , 22 , 30 ). However, although chicken is one of the most-consumed meats in Spain ( 17 ), no studies have been carried out to evaluate the presence of T. gondii in chicken meat products in the country.…”

Section: Introductionmentioning

confidence: 99%

Prevalence of Toxoplasma gondii in retail fresh meat products from free-range chickens in Spain

Salinas

Campos

Peris

et al. 2021

Journal of Veterinary Research

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Introduction Toxoplasma gondii is one of the most prevalent zoonotic protozoan parasites worldwide and affects the vast majority of warm-blooded animal species, including humans. Postnatal infection in humans occurs through the ingestion of sporulated T. gondii oocysts or via the oral intake of parasite tissue cysts during the consumption of raw or undercooked meat. In this regard, given their high exposure to oocysts, chickens (Gallus domesticus) raised on the ground constitute a potential source of T. gondii. Material and Methods For the first time in Spain, a survey was undertaken in commercial retail free-range poultry. A total of 50 thighs from different animals were analysed. The samples were homogenised and an acid pepsin digestion procedure was applied prior to molecular analysis. Toxoplasma gondii DNA was isolated from meat by qPCR. Two sets of primers were used for DNA amplification targeting the specific sequence of a 529 bp repeat element and another set of primers was utilised for the surface antigen protein-1 gene. Results DNA extracted from 5 out of 50 tissue samples was positive for both genes by qPCR amplification. Conclusion The 10% prevalence of Toxoplasma infection found in commercial free-range chickens raises public health issues.

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“…The high seroprevalence found here indicate that focusing on the sources of infection is fundamental, since T. gondii is directly influenced by the environment, which allows its survival in the form of oocysts in the soil. Considering that free-ranging chickens are raised for domestic consumption, both the handler and the consumer are exposed to the risk of infection, either during the processing of the carcass or due to the consumption of raw or semi-cooked meat (Chumpolbanchorn et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Cross-sectional survey for toxoplasmosis in free-range chickens (Gallus gallus domesticus) from the Atlantic Forest area in Alagoas state, Northeastern Brazil

Braz

Feitosa²,

Romão³

et al. 2020

Rev. Bras. Parasitol. Vet.

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Toxoplasmosis is a parasitic disease, which is prevalent across the world and has a strong environmental component in its transmission chain. The present study determined the seroprevalence and factors related to Toxoplasma gondii infection among free-range chickens from an Atlantic Forest area in Northeastern Brazil. A total of 550 free-range chickens were tested for T. gondii antibodies usingthe indirect fluorescent antibody test (IFAT, cut-off point 1:16), and 269 (48.9%; 95% CI = 44.7-53.1%) were positive. Among the 61 properties 57 (93.4%) had at least one seropositive animal. The robust Poisson regression model showed that the variables/categories associated with the seroprevalence of T. gondii were: region of origin of the animals/urban area (prevalence ratio [PR] = 2.346; P<0.001), management system/use of cages (PR = 1.591; P = 0.019), presence of rodents/yes (PR = 1.295; P = 0.035), and the type of food/use of food scraps (PR = 1.603; P = 0.009). The high prevalence found suggest that this scenario demands careful management, mainly regarding the use of scraps of undercooked or raw food, adequate environmental hygiene and frequent rodentcontrol.

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A high prevalence of Toxoplasma in Australian chickens

Cited by 14 publications

References 25 publications

Miscarriage history andToxoplasma gondii infection: A cross-sectional study in women in Durango City, Mexico

Miscarriage history andToxoplasma gondii infection: A cross-sectional study in women in Durango City, Mexico

Prevalence of Toxoplasma gondii in retail fresh meat products from free-range chickens in Spain

Cross-sectional survey for toxoplasmosis in free-range chickens (Gallus gallus domesticus) from the Atlantic Forest area in Alagoas state, Northeastern Brazil

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