Parasitic and Bacterial Infections of <i>Myocastor coypus</i> in a Metropolitan Area of Northwestern Italy

Zanzani, Sergio Aurelio; Cerbo, Annarita Di; Gazzonis, Alessia Libera; Epis, Sara; Invernizzi, Anna; Tagliabue, Silvia; Manfredi, Maria Teresa

doi:10.7589/2015-01-010

Cited by 30 publications

(37 citation statements)

References 14 publications

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“…The present survey, aimed at estimating the presence of T. gondii in small ruminants' meats consumed in Italy, revealed seroprevalence values lower than those previously reported in sheep J o u r n a l P r e -p r o o f Journal Pre-proof (59.3%) and goats (41.7%) bred in Northern Italy [6]. In the study area, T. gondii showed to be widely spread also in other domestic [11,12] and wild animals [13][14][15]. Moreover, compared to the previous epidemiological survey [6] mostly focusing on adult meat producing sheep and dairy goats, in the present study both adult and young sheep and goats were sampled since a large proportion of lambs and kids are slaughtered in Italy (respectively 90.3% and 86%) (data obtained from the National Institute of Statistic, ISTAT, http://dati-censimentoagricoltura.istat.it/).…”

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confidence: 78%

Toxoplasma gondii infection in meat-producing small ruminants: Meat juice serology and genotyping

Gazzonis

Zanzani

Villa

et al. 2020

Parasitology International

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confidence: 78%

Toxoplasma gondii infection in meat-producing small ruminants: Meat juice serology and genotyping

Gazzonis

Zanzani

Villa

et al. 2020

Parasitology International

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“…The higher percentages of positivity of Tuscany and Lombardy compared with the other analysed regions could be due to particular environmental conditions, potential risk factors and the abundance of reservoirs in the wild fauna. In fact, in the last years, the occurrence of Leptospira was reported in humans, wild and domestic animals in these areas [24][25][26][27][28][29][30][31].…”

Section: Epidemiology and Infection 1277mentioning

confidence: 99%

Serological survey on Leptospira infection in slaughtered swine in North-Central Italy

et al. 2018

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Swine can act as asymptomatic carriers of some Leptospira serovars. In this study, 1194 sera from 61 farms located in five different Regions of North-West Italy were collected from slaughtered healthy pigs. Presence of antibody against four Leptospira serovars was evaluated. Overall, 52.5% of analysed farms presented at least one positive animal and 34.4% presented at least one positive swine with titre ⩾1:400. A percentage of 16.6% sera was positive and 5.9% samples presented a positive titre ⩾1:400. Tuscany and Lombardy showed the highest percentage of positive farms (64.3% and 54.6%, respectively) and sera (28.5% and 13.3%, respectively), probably due to environmental conditions and potential risk factors, which promote maintenance and spreading of Leptospira in these areas. The main represented serogroups were Australis (21.3% positive farms, 8.2% positive sera) and Pomona (18.0% positive farms, 8.1% positive sera). In swine, these serogroups are the most detected worldwide; however, our results seem to highlight a reemerging of serogroup Pomona in pigs in investigated areas. A low percentage of sera (0.6%) scored positive to Canicola, leaving an open question on the role of pigs in the epidemiology of this serovar. Higher antibody titres were detected for serogroups Australis and Pomona. Swine leptospirosis is probably underestimated in Italy and could represent a potential risk for animal and human health.

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“…The study area (Lombardy region, northern Italy) was selected, since several management systems in sheep and goat breeding are represented in territories varying from the plains to the mountains. As several epidemiological studies demonstrated the presence of T. gondii and N. caninum in domestic and wild animals including small ruminants from this territory [14,15,28,29,30,31,32], the present study aimed to investigate possible geographical or environmental factors influencing the distribution of these protozoal infections and to identify areas at high risk of infection in order to establish preventive measure to control their spread.…”

Section: Introductionmentioning

confidence: 99%

Spatial Analysis of Infections by Toxoplasma gondii and Neospora caninum (Protozoa: Apicomplexa) in Small Ruminants in Northern Italy

Gazzonis

Villa

Manfredi

et al. 2019

Animals

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Simple SummaryToxoplasma gondii and Neospora caninum are among the major abortifacient pathogens in sheep and goats. Environmental risk factors may contribute to the spread of both protozoans among sheep and goats. In this study, the spatial analysis provided additional information useful to study the patterns of distribution and spread of diseases, increasing the comprehension of the association between disease processes and explanatory environmental variables. The research aimed to explore whether geographical or environmental factors could influence the infections by T. gondii and N. caninum in sheep and goats in northern Italy and identify areas at risk of infection. A heterogenic distribution of seroprevalence both pathogens was highlighted in the study area with areas at high or low risk according to the protozoan. Particularly, annual temperature, rainfall, and their association enhanced the risk of T. gondii and N. caninum infection among sheep. Otherwise, the risk for goats to acquire those infections did not depend on environmental or geographical features, but instead on factors associated with individual characteristics or farm management. The results observed in this study suggest spatial analysis is a useful tool to implement control measures to prevent these important protozoan diseases for small ruminant breeding.AbstractThe objectives of this study were: (i) To investigate possible geographical or environmental factors influencing the infections by Toxoplasma gondii and Neospora caninum in sheep and goats in northern Italy; (ii) to identify areas at risk of infection to set up preventive measures. Forty-three sheep and goat farms were included. Their locations were plotted and associated with T. gondii and N. caninum seroprevalence, then the distribution of farms’ prevalence was evaluated by spatial analysis. Significant clusters for both low and high prevalence were obtained, and a generalized linear model with ordinal logistic regression was implemented to verify if spatial clustering could be due to climate factors (temperature, rainfall, and their interaction). Clusters of high (80.0%) and low prevalence (28.12%) resulted for T. gondii seroprevalence in sheep farms. No significant clusters resulted for goat farms. Clusters of high (38.68%) and low prevalence (21.23%) resulted for N. caninum seroprevalence in sheep farms. One high-prevalence cluster (15.62%) resulted for goat farms. For goats, spatial analysis and analysis on climatic data showed the absence of environmental significant risk factors associated with T. gondii or N. caninum infection. On the contrary, for sheep, annual temperature, rainfall, and their association affected the risk of T. gondii and N. caninum infection. Particularly, high temperatures and abundant rainfalls were related to T. gondii seroprevalence, while low temperatures and scarce rainfalls were related to N. caninum seroprevalence.

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Parasitic and Bacterial Infections of Myocastor coypus in a Metropolitan Area of Northwestern Italy

Cited by 30 publications

References 14 publications

Toxoplasma gondii infection in meat-producing small ruminants: Meat juice serology and genotyping

Toxoplasma gondii infection in meat-producing small ruminants: Meat juice serology and genotyping

Serological survey on Leptospira infection in slaughtered swine in North-Central Italy

Spatial Analysis of Infections by Toxoplasma gondii and Neospora caninum (Protozoa: Apicomplexa) in Small Ruminants in Northern Italy

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