Sero-prevalence and risk factors of Toxoplasma gondii infection in wild cervids in Denmark

Stensgaard, Anna‐Sofie; Sengupta, Mita E.; Chriél, M.; Nielsen, Stine Thorsø; Petersen, Heidi Huus

doi:10.1016/j.ijppaw.2022.03.010

Cited by 7 publications

(6 citation statements)

References 42 publications

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“…So, considering the limits of the present study, the data gathered would indicate a low circulation of T. gondii among the selected roe deer population. The occurrence of toxoplasmic infection in wild ruminants is strongly affected by the ecosystem and management [ 45 , 51 ], and roe deer populations with a low density and living in arid areas are reported to be less prone to infection [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Retrospective Molecular Survey on Bacterial and Protozoan Abortive Agents in Roe Deer (Capreolus capreolus) from Central Italy

Ebani

Trebino

Guardone

et al. 2022

Animals

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Bacterial and protozoan agents can determine abortion and other reproductive disorders in domestic ruminants, but data regarding their occurrence in wild ruminants are scanty worldwide, including in Italy. The aim of this retrospective study was to verify the occurrence of the main bacterial and protozoan abortive agents in 72 spleen samples previously collected from roe deer (Capreolus capreolus) living in mountain areas of Central Italy. All samples were collected and submitted to DNA extraction for other investigations. Molecular analyses were carried out on the DNA samples to detect Brucella spp., Chlamydia abortus, Coxiella burnetii, Salmonella enterica, Listeria monocytogenes, Neospora caninum, and Toxoplasma gondii. Three (4.16%) roe deer resulted PCR positive for C. burnetii and one (1.38%) for T. gondii. These findings suggest that roe deer living in the investigated areas do not act as important reservoirs of the searched agents. However, the tested animals lived in a closed area without contact with domestic animals that are usually involved in the epidemiology of the investigated pathogens. Monitoring of wild ruminants is pivotal to verify changes in the epidemiological scenario from a One Health perspective, too.

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Section: Resultsmentioning

confidence: 99%

Retrospective Molecular Survey on Bacterial and Protozoan Abortive Agents in Roe Deer (Capreolus capreolus) from Central Italy

Ebani

Trebino

Guardone

et al. 2022

Animals

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“…Slovenian climate, which is Mediterranean/Continental/pre-Alpine might allow for T. gondii to thrive ( 27 ). Risk factors associated with higher T. gondii exposure are usually species, sex, age, and geographical distribution ( 23 , 26 , 81 – 83 ). Roe deer are more likely to be T. gondii positive than red deer and chamois.…”

Section: Discussionmentioning

confidence: 99%

Seroprevalence of infectious pathogens of zoonotic and veterinary importance in wild ruminants from Slovenia

Žele Vengušt,

Krt,

Blagus

et al. 2024

Front. Vet. Sci.

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IntroductionWildlife represents an increasingly important source of pathogens of medical and veterinary importance. Surveillance in wildlife offers an insight on current epidemiological status of selected pathogens and help to prevent spillovers to humans and livestock.Material and methodsOur study included 312 wild ruminants belonging to five species: Roe deer (n = 134), red deer (n = 113), Alpine chamois (n = 53), European mouflon (n = 10) and Alpine ibex (n = 2). Seven pathogens that may have profound effect on human/livestock health and economic viability of the farms were tested using serological methods.ResultsAntibodies against Toxoplasma gondii, Neospora caninum, Coxiella burnetii, Brucella spp., Chlamydophila abortus, Mycobacterium avium subsp. paratuberculosis (MAP) and Mycobacterium bovis were detected in 34.62% (108/312), 0.96% (3/312), 2.24% (7/312), 0, 0.96% (3/312), 0, 0.64% (2/312) of animals tested, respectively. Because of low prevalences, risk factors were assessed only for T. gondii. Sex (female>male) and species (roe deer>red deer, roe deer>Alpine chamois) were significantly associated with the T. gondii positive outcome, while age was not.DiscussionAdult males had the lowest T. gondii prevalence which offers future research opportunities. The lower seroprevalence of most investigated pathogens suggests game meat, if properly cooked, as being relatively safe for human consumption. This is the first study investigating the seroprevalence and associated risk factors of selected pathogens in wild ruminants in Slovenia.

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“…The seroprevalence of T. gondii in the Swedish reindeer was estimated to be 2.1% (Table 1 ) and comparable with findings in previous studies on reindeer in nearby countries and in Alaska [ 7 , 13 , 14 , 20 ]. Due to the low number of seropositive reindeer, the ability to detect associations between possible risk factors such as age, sex, main grazing area and seropositivity as reported in literature for reindeer [ 7 ] and other deer species [ 21 ] was limited, i.e., the power of detection for possible risk factors in T. gondii infection was low.…”

Section: Discussionmentioning

confidence: 99%

Toxoplasma gondii seroprevalence in reindeer (Rangifer tarandus tarandus L.) in northern Sweden: a cross-sectional study from 2014

Kautto,

Olsen,

Wallander

et al. 2023

Acta Vet Scand

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Background Toxoplasma gondii is a parasitic protozoan that can infect a wide range of warm-blooded animals, including humans. The infection with T. gondii, is of particular concern due to its potential impact on human and animal health. In Sweden, semi-domesticated reindeer (Rangifer tarandus tarandus L.) is an important species both economically and culturally, but susceptibility to Toxoplasma infection and seroprevalence in reindeer herds remain relatively understudied. Results A total of 528 reindeer, sampled at two slaughterhouses in Sweden in 2014, were investigated for antibodies to T. gondii. Specific antibodies to T. gondii were found in 5 of 209 (2.3%) tested adult reindeer and in 6 of 308 (1.9%) tested calves, giving an apparent total prevalence of 2.1% (95% confidence interval 1.1–3.8%). None of four putative risk factors studied (sex, age, type of grazing area, county) were statistically associated with T. gondii seroprevalence. Conclusions Swedish semi-domesticated reindeer are exposed to T. gondii and may harbour infectious tissue cysts. To mitigate the risk of T. gondii infection in consumers, reindeer meat should be frozen or cooked thoroughly before consumption. The global climate change may influence the seroprevalence and possible associated risk factors for T. gondii in reindeer. To be able to manage the risk and get better advice to the consumers there is a need for further investigations covering the whole spectra of herding conditions for reindeer.

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Sero-prevalence and risk factors of Toxoplasma gondii infection in wild cervids in Denmark

Cited by 7 publications

References 42 publications

Retrospective Molecular Survey on Bacterial and Protozoan Abortive Agents in Roe Deer (Capreolus capreolus) from Central Italy

Retrospective Molecular Survey on Bacterial and Protozoan Abortive Agents in Roe Deer (Capreolus capreolus) from Central Italy

Seroprevalence of infectious pathogens of zoonotic and veterinary importance in wild ruminants from Slovenia

Toxoplasma gondii seroprevalence in reindeer (Rangifer tarandus tarandus L.) in northern Sweden: a cross-sectional study from 2014

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