Mapping and modelling helminth infections in ruminants in Europe: experience from GLOWORM

Rinaldi, Laura; Hendrickx, Guy; Cringoli, Giuseppe; Biggeri, Annibale; Ducheyne, Els; Catelan, Dolores; Morgan, Eric R.; Williams, Diana; Charlier, Johannes; Samson‐Himmelstjerna, Georg von; Vercruysse, Jozef

doi:10.4081/gh.2015.347

Cited by 16 publications

(12 citation statements)

References 13 publications

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“…Modelo 2 con Dummy y modelo 3 con ROR para ambos los casos. fueron no son significativas al igual que la tendencia, pero esto no debe preocuparnos, porque estamos utilizando para predecir variables pronosticadas, que presentan menor variabilidad que las reales, lo cual coincide con resultados obtenidos por Balajoko et al (2015) y Rinaldi et al (2015) en otros grupos de animales. La fasciolosis regresada en dos bimestres no fue significativa tampoco, solo las variables de paso/Step resultaron significativas (Tabla 4).…”

Section: Resultados Y Discusiónunclassified

Modelación y predicción de la fasciolosis en villa clara, Cuba

Rodríguez¹,

Duarte

Iannacone

et al. 2017

Biotempo

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El objetivo de la investigación consistió en modelar y pronosticar el comportamiento de la fasciolosis total en la provincia Villa Clara, Cuba hasta el año 2020. La investigación abarcó el periodo comprendido entre enero del 2004 hasta junio del 2015. Se utilizaron dos metodologías: la Metodología Objetiva Regresiva (ROR) y la regresión con variables Dummy. Se elaboraron tres modelos, el primero fue el de la variable climática que mayor influencia tuvo en la fasciolosis utilizando variables dummy, segundo una modelación utilizando variables Dummy de la fasciolosis, y un tercer modelo, con el empleo de la metodología ROR utilizando como variables independientes las predichas en los modelos anteriores. Se obtuvieron coeficientes de correlación entre el valor real y el pronóstico de R=0,99 para el modelo 1, con un error de 0,88 ºC para el modelo 2, R=0,92 con un error de 89,08 casos, y para el tercer modelo R=0,94 con un error de 76,37. La tendencia de la fasciolosis es positiva al aumento en 7,91 casos, donde un aumento de temperatura mínima de un grado trajo aparejado, una disminución de la fasciolosis en 3,8 casos, por lo que para el año 2020 deben presentarse valores superiores a los del 2015 si se mantiene la tendencia al aumento de la fasciolosis, con valores inferiores a los 300 casos. Se concluye que la tendencia para la temperatura mínima y la fasciolosis fue significativa al aumento hasta el año 2020. El modelo 3 fue el de menores errores. Debe prestarse atención esmerada a los planes de prevención de esta enfermedad para disminuir el impacto que esta pueda tener en la población.

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Section: Resultados Y Discusiónunclassified

Modelación y predicción de la fasciolosis en villa clara, Cuba

Rodríguez¹,

Duarte

Iannacone

et al. 2017

Biotempo

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“…One of the aims of the EU-GLOWORM project was to update current knowledge of prevalence of the most important gastrointestinal nematodes, namely, Haemonchus , Teladorsagia and Trichostrongylus , through harmonised sampling and diagnostic procedures in key regions in Europe (Rinaldi et al., 2015c). Overall, it was shown that, in all three pilot countries, Italy, Ireland and Switzerland, prevalences of gastrointestinal nematodes were generally very high, ranging between 91 and 100% (Rinaldi et al., 2015b).…”

Section: Discussionmentioning

confidence: 99%

Benzimidazole resistance survey for Haemonchus , Teladorsagia and Trichostrongylus in three European countries using pyrosequencing including the development of new assays for Trichostrongylus

Ramünke

Melville

Rinaldi

et al. 2016

International Journal for Parasitology: Drugs and Drug Resistan

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Resistance to benzimidazoles (BZs) in trichostrongyloid nematodes is a worldwide problem for livestock production, particularly regarding small ruminants. Sensitive and reliable methods are required to assess anthelmintic resistance status. Currently available methods for BZ resistance detection can be divided into three main groups, in vivo (e.g. faecal egg count reduction test), in vitro (e.g. egg hatch assay) and molecular tests. Three single nucleotide polymorphisms (SNPs) in the isotype-1 β-tubulin gene of various nematode species correlate with BZ resistance. While PCR-based methods have been reported for the three most economically important nematodes of sheep, namely, Trichostrongylus, Haemonchus and Teladorsagia, pyrosequencing assays are so far only available for the latter two. Here, the design and evaluation of pyrosequencing assays for isotype-1 and isotype-2 β-tubulin genes of Trichostrongylus colubriformis are described. PCR fragments carrying the susceptible and corresponding resistant genotype were combined in defined ratios to evaluate assay sensitivity and linearity. The correlation between the given and the measured allele frequencies of the respective SNPs (codons F167Y, E198A and F200Y) was very high. Pyrosequencing assays for Haemonchus, Teladorsagia and Trichostrongylus were subsequently used for a BZ resistance survey, carried out in the three European countries, namely Ireland, Italy and Switzerland. Larval cultures obtained from field survey samples in 2012 and 2013 were used for pyrosequencing. The test was applied when the target species represented at least 10% of the sample. Trichostrongylus and Teladorsagia were detected in all countries' samples whereas Haemonchus was not detected in samples from Ireland. SNPs in isotype-1 associated with resistance were detected for all three species, with frequencies at codon F200Y far exceeding those at codons F167Y and E198A. Elevated SNP frequencies in isotype-2 of Trichostrongylus were only rarely detected. Farms with BZ resistance-associated SNP frequencies above 10% were most often found in Switzerland followed by Ireland and Italy.

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“…The stronger potential to match the suitability of various environments to parasite life cycles and transmission dynamics provides a new way to address the nidality concept introduced by Pavlovskii as far back as 1945 [16]. Based on his ideas, geography and environmental variables associated with health data have led to the concept of disease ecology, where RS provides useful insights on the different factors related to transmission levels and disease distributions, while mapping and modelling facilitates interpretation, synthesis, and recognition of outbreak frequencies [17].…”

Section: Data Collectionmentioning

confidence: 99%

Use of Geospatial Surveillance and Response Systems for Vector-Borne Diseases in the Elimination Phase

Malone

Bergquist²,

Martins

et al. 2019

TropicalMed

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The distribution of diseases caused by vector-borne viruses and parasites are restricted by the environmental requirements of their vectors, but also by the ambient temperature inside the host as it influences the speed of maturation of the infectious agent transferred. The launch of the Soil Moisture Active Passive (SMAP) satellite in 2015, and the new ECOSTRESS instrument onboard the International Space Station (ISS) in 2018, established the leadership of the National Aeronautics Space Administration (NASA) in ecology and climate research by allowing the structural and functional classification of ecosystems that govern vector sustainability. These advances, and the availability of sub-meter resolution data from commercial satellites, contribute to seamless mapping and modelling of diseases, not only at continental scales (1 km2) and local community or agricultural field scales (15–30 m2), but for the first time, also at the habitat–household scale (<1 m2). This communication presents current capabilities that are related to data collection by Earth-observing satellites, and draws attention to the usefulness of geographical information systems (GIS) and modelling for the study of important parasitic diseases.

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Mapping and modelling helminth infections in ruminants in Europe: experience from GLOWORM

Cited by 16 publications

References 13 publications

Modelación y predicción de la fasciolosis en villa clara, Cuba

Modelación y predicción de la fasciolosis en villa clara, Cuba

Benzimidazole resistance survey for Haemonchus , Teladorsagia and Trichostrongylus in three European countries using pyrosequencing including the development of new assays for Trichostrongylus

Use of Geospatial Surveillance and Response Systems for Vector-Borne Diseases in the Elimination Phase

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