Correlation between climate data and land altitude for Fasciola hepatica infection in cattle in Santa Catarina, Brazil

Silva, Ana Elisa Pereira; Freitas, Corina da Costa; Dutra, Luciano Vieira; Molento, Marcelo Beltrão

doi:10.1590/s1984-29612020065

Cited by 8 publications

(15 citation statements)

References 27 publications

(36 reference statements)

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“…The prevalence of Fasciola infection can vary widely within small geographic areas. [49][50][51] Esteban et al studied 2700 subjects in 24 communities located in a small area between La Paz and Lake Titicaca in the Bolivian Altiplano and reported rates of infection varying between 0% and 68%. 52 Similarly, Cabada et al studied 2500 children in 26 neighboring communities of the Anta province in Peru and found infection rates between 0% and 20%.…”

Section: Epidemiologymentioning

confidence: 99%

<p>Human Fascioliasis: Current Epidemiological Status and Strategies for Diagnosis, Treatment, and Control</p>

Caravedo¹,

Cabada²

2020

RRTM

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Purpose of the Review: This review aims to critically assess current knowledge about the epidemiology, diagnosis, and management of Fasciola infection in humans. Recent Findings: Fascioliasis is an emerging neglected zoonotic infection affecting the health and wellbeing of human populations. The burden of infection is unclear, and studies have shown the geographic expansion of fascioliasis in human and livestock likely related to climate change. The infection can be asymptomatic or present in acute or chronic forms. Regardless of the presentation, fascioliasis can be associated with long-term complications such as anemia and malnutrition. Early in the infection, antibody testing is the only tool available for diagnosis confirmation. In the chronic forms serology and stool microscopy are helpful. Other tests such as antigen detection and PCR-based methods including isothermal tests have shown promising results. Triclabendazole is the only drug available to treat Fasciola infection. However, reports of resistant infections in livestock and human threaten the clinical care and control of the infection in endemic areas. Summary: Fascioliasis is an emerging infection around the world with an uncertain burden. Lack of standardization of diagnostic testing and treatment alternatives hinder treatment and control of the infection.

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Section: Epidemiologymentioning

confidence: 99%

<p>Human Fascioliasis: Current Epidemiological Status and Strategies for Diagnosis, Treatment, and Control</p>

Caravedo¹,

Cabada²

2020

RRTM

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“…Silva et al . (2020) have recently determined that fascioliasis is a disease that is epidemiologically constant, requiring year-long monitoring. Therefore, and considering that F. hepatica is a chronic infection that may last for up to two years in infected animals (Ross, 1968) with significant clinical damage, the SIR model may be used to assess regional control programs once a diagnostic of infectivity is implemented.…”

Section: Discussionmentioning

confidence: 99%

“…The four specific conditions were established on the different disease prevalence in the state of RS (low, mild, moderate, severe), based on the positivity index described by Silva et al . (2016, 2020). Condition A represents, an optimal situation with minimal clinical cases and a high recuperation level; condition B represents a mild level of prevalence in an area with a low level of recuperation; condition C has a moderate number of infections, with a decreasing number of recuperations; and condition D is a severe situation, with a high number of infectivity and a very low number of recuperations.…”

Section: Methodsmentioning

confidence: 99%

“…The multifactorial effects of F. hepatica on animals and human health suggest that modelling approaches may be useful to calculate the impact of the disease in cattle (Charlier et al ., 2013). Disease-based simulation studies are being applied to study fasciolosis, providing additional support for diagnostic and control strategies in Europe and South America (Kantzoura et al ., 2011; Silva et al , 2016, 2020; Molento et al , 2018). To overcome these difficulties, risk analysis simulations such as Monte Carlo have been used to control the variability of some parameters (Schweizer et al ., 2005).…”

Section: Introductionmentioning

confidence: 99%

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Fasciola hepatica infection in cattle and the use of simulation models for endemic areas

et al. 2020

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Fasciolosis is a food-borne disease that causes great distress to a range of hosts, including humans. The objectives of this study were to (1) evaluate the liver damage and carcass weight of cattle naturally infected with Fasciola hepatica from the state of Rio Grande do Sul (RS), Brazil, and to (2) determine the distribution of adult flukes in 12,236 cattle liver from RS. The data from these experiments were used to calculate the overall economic loss due to F. hepatica infection. Eighteen adult Polled Hereford cows were divided into a triclabendazole (TbG) and a F. hepatica-positive group (FhG). For Experiment 1, a generalized linear mixed model revealed a statistical difference in carcass weight (49.8 kg) between TbG and FhG. The Monte Carlo analysis also revealed that the animals’ weight differences were due to the disease. For Experiment 2, the prevalence of infected livers was above 16% (1904/12,236), mostly (20.1%) from the south-west region of RS. The Susceptible-infected-recovered (SIR) epidemic model revealed the evolution of the infection using a high infectivity and low recovery rate. Other distinctive scenarios that occur in RS were also established with different rates of infectivity. The economic assessment showed a potential loss of US$45 million to the beef cattle industry of RS, with an overall State cost of US$90.3 million. These novel findings reveal the importance of fasciolosis infection, which can cause a significant health condition and poor animal welfare.

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“…In Brazil, the number of discarded livers and the weight reduction of animal carcasses result in an economic loss of approximately USD 210 million/year. The states of Rio Grande do Sul and Santa Catarina present the first and second greatest losses, USD 147.4 and 24.6 million/year, respectively (MOLENTO et al, 2018;SILVA et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution analysis of bovine fascioliasis cases recorded in an abattoir in the state of Santa Catarina, Brazil

et al. 2022

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Fascioliasis is a zoonosis of global distribution caused by the parasitic trematode Fasciola spp. Infection in humans can occur in areas endemic for animal fascioliasis, suggesting the need for studies on this parasitosis and its determinants. This exploratory study aimed to analyze the spatial distribution of bovine fascioliasis in the state of Santa Catarina, Brazil, based on cases notified between 2015 and 2017 in a state abattoir, located in the municipality of Orleans, and to associate disease occurrence with altitude, temperature, and rainfall. The research was conducted at Centro Universitário Barriga Verde (UNIBAVE)/Orleans, SC and Fundação Oswaldo Cruz/Rio de Janeiro, RJ. During the study period, the abattoir received animals from 58 municipalities in that state. Of the animals slaughtered in that period, 10,81% were infected with Fasciola hepatica. Presence of bovine fascioliasis infection was identified in the South and Southeast regions of the state, with higher prevalence rates in the latter. There was an association between low altitudes and higher occurrence of cases in the municipalities assessed. In addition, prevalence of bovine fascioliasis was higher in municipalities with high temperatures and low rainfall. Therefore, these results should be considered for planning disease control measures in the South and Southeast regions of the state of Santa Catarina.

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Correlation between climate data and land altitude for Fasciola hepatica infection in cattle in Santa Catarina, Brazil

Cited by 8 publications

References 27 publications

<p>Human Fascioliasis: Current Epidemiological Status and Strategies for Diagnosis, Treatment, and Control</p>

<p>Human Fascioliasis: Current Epidemiological Status and Strategies for Diagnosis, Treatment, and Control</p>

Fasciola hepatica infection in cattle and the use of simulation models for endemic areas

Spatial distribution analysis of bovine fascioliasis cases recorded in an abattoir in the state of Santa Catarina, Brazil

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