Soil contamination by Echinococcus multilocularis in rural and urban vegetable gardens in relation to fox, cat and dog faecal deposits - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Parasite Année : 2021

Soil contamination by Echinococcus multilocularis in rural and urban vegetable gardens in relation to fox, cat and dog faecal deposits

Jenny Knapp

Résumé

Echinococcus multilocularis eggs are deposited on the ground with the faeces of the carnivore definitive hosts. A reliable assessment of the spatial distribution of E. multilocularis eggs in environments used by humans is crucial for the prevention of alveolar echinococcosis (AE). This study was conducted in 192 rural and 71 urban vegetable gardens in AE endemic areas of north-eastern France. Its objective was to explore the relationship between the spatial distribution of E. multilocularis estimated from the collection and molecular analysis of two types of samples: faeces and soil. A total of 1024 carnivore faeces and 463 soil samples were collected and analysed by real-time PCR. No fox droppings and no positive soil samples were collected from the urban gardens. Positive soil samples, positive carnivore faeces, or both, were found in 42%, 24% and 6% of the sampled rural gardens, respectively. No significant association was found between the detection of E. multilocularis in soil samples collected from 50 gardens during a single sampling session and the extent and frequency of deposits of fox and cat faeces collected during repeated sampling sessions conducted in the previous months. In 19/50 gardens, E. multilocularis was detected in the soil while no positive faeces had been collected in the previous 12 months. Conversely, in 8/50 gardens, no soil samples were positive although positive faeces had been collected in the previous months. Collecting and analysing faeces provide information on soil contamination at a given time, while analysing soil samples provides an overview of long-term contamination.
Fichier principal
Vignette du fichier
parasite210068.pdf (605.01 Ko) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-03410990 , version 1 (01-11-2021)

Licence

Paternité

Identifiants

Citer

Abdou Malik da Silva, Matthieu Bastien, Gérald Umhang, Franck Boué, Vanessa Bastid, et al.. Soil contamination by Echinococcus multilocularis in rural and urban vegetable gardens in relation to fox, cat and dog faecal deposits. Parasite, 2021, 28, pp.74. ⟨10.1051/parasite/2021073⟩. ⟨hal-03410990⟩
124 Consultations
104 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More