Economic impact of the liver condemnation of cattle infected with Fasciola hepatica in the Peruvian Andes

Arias-Pacheco, Carmen; López, Juan Raúl Lucas; Rodríguez, Alejandro; Córdoba, Daniela; Hoppe, Estevam Guilherme Lux

doi:10.1007/s11250-020-02211-y

Cited by 36 publications

(18 citation statements)

References 39 publications

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“…A study in a single slaughterhouse from the Andes Mountains of Peru reported a 55% prevalence of fascioliasis in cattle causing an estimated annual loss of USD 400,000 from liver condemnation and decreased carcass weight. 28 Similar studies in Ethiopia and Cameroon showed a lower Fasciola prevalence with estimated losses from liver condemnations of USD 43,000 and USD 76,000 per year, respectively. 29,30 In these settings, Fasciola not only inflicts an economic burden on smallscale producers but also threatens food security among subsistence farmers that raise livestock to feed their families.…”

Section: Introductionmentioning

confidence: 69%

<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: Introductionmentioning

confidence: 69%

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

Caravedo¹,

Cabada²

2020

RRTM

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“…The present study is the first to determine the seasonal prevalence of bovine fasciolosis with different climate regions, elevations and risk factors in Mexico through the inspection of livers, as well as the first study to link the presence of this disease to climate and environmental factors. The percentages of prevalence of condemned livers in Zacatlán and Teziutlán districts with temperate climate ranged from 13.2% to 17.5%, similar to the range in prevalence reported in Brazil (10.14–18.66%) (Dutra et al ., 2010) but higher than those observed in Portugal (2.2%) (Barbosa et al ., 2019) and lower than those reported in Brazil (37.6%), Algeria (26.7%), Portugal and Spain (28%), Uruguay (33.9%) and Peru (55.72%) (Arias et al ., 2011; Ouchene-Khelifi et al ., 2018; Quevedo et al ., 2018; da Costa et al ., 2019; Arias-Pacheco et al ., 2020). This study shows that the prevalence of F .…”

Section: Discussionmentioning

confidence: 99%

“…This study shows that the prevalence of F . hepatica at altitudes higher than 1800 m above sea level in Puebla (which has a temperate climate) ranges from 13.2% to 17.5%, which is lower than the prevalence in Peru (55.4% and 55.72% at 3300 m and 3350 m above sea level, respectively) (Arias-Pacheco et al ., 2020; Caravedo et al ., 2021). Our survey also shows that the prevalence of this parasite in the tropical climate (24 m above sea level) was 26.0% – higher than that reported in Cuba (18.27%) – with an altitude of 122 m above sea level (Palacio Collado et al ., 2017).…”

Section: Discussionmentioning

confidence: 99%

“…No significant difference in the prevalence of condemned livers was found between the wet and dry seasons in a temperate climate at altitudes of 1890 m and 2028 m. Consequently, the findings in this study are similar to those of another study conducted in Peru, in which prevalence rates of 56.3% and 53.9% in the wet and dry seasons were found, at 3300 m above sea level (Arias-Pacheco et al ., 2020). Persistent infection throughout the year may result from continued exposure of the cattle to encysted metacercariae in grazing pastures.…”

Section: Discussionmentioning

confidence: 99%

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Prevalence and seasonal variation of Fasciola hepatica in slaughtered cattle: the role of climate and environmental factors in Mexico

et al. 2021

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The objective of this study is to determine the prevalence of Fasciola hepatica infection in cattle slaughterhouses, as well as its association with climatic/environmental factors (derived from satellite data), seasonality and climate regions in two states in Mexico. Condemned livers from slaughtered animals were obtained from three abattoirs in the states of Puebla and Veracruz. The overall prevalence of the parasite in cattle between January and December of 2017 was 20.6% (1407 out of 6834); the highest rate of condemnation was observed in Veracruz (26.3%; tropical climate), and the lowest rate was found in Puebla (15.5%; temperate climate). The seasonal prevalence of fluke infection was 18.6%, 14.8% and 28.4% during the wet season, and 17.1%, 12.4% and 22.8% during the dry season in the three abattoir sites, located in the districts of Zacatlán, Teziutlán and Ciudad Alemán, respectively. Liver condemnations due to bovine fasciolosis were prevalent in the Zacatlán, Teziutlán and Ciudad Alemán districts during summer, autumn and summer, respectively. Using generalized estimating equations analysis, we determined six variables – rainfall (wet/dry), land surface temperature day, land surface temperature night, normalized difference vegetation index, seasonality and climate regions (temperate/tropical) – to be significantly associated with the prevalence of condemned livers. Climate region was the variable most strongly associated with F. hepatica infection (odds ratio (OR) 266.59; 95% confidence interval (CI): 241.90–353.34), followed by wet and dry seasons (OR 25.56; 95% CI: 20.56–55.67).

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“…Most of the economic losses from F. hepatica arise from a decrease in milk production and reduce weight gain. According to Arias-Pacheco et al (2020), the losses due to liver condemnation may reach 55.72%, with a market value of US$35.080, and a direct loss by the reduction in weight gain of approximately US$354.570 in Peru. In acute or chronic infections, daily blood loss per animal was determined to be about 0.2 to 0.5 ml per worm (Khan et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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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Economic impact of the liver condemnation of cattle infected with Fasciola hepatica in the Peruvian Andes

Cited by 36 publications

References 39 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>

Prevalence and seasonal variation of Fasciola hepatica in slaughtered cattle: the role of climate and environmental factors in Mexico

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

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