Preliminary Study on the Cross transmission of Digestive Strongyle Nematodes between Humans and Small Ruminants in the Foto Group, Dschang, West Cameroon - Abstract
In areas where humans coexist with small ruminants, the circulation of gastrointestinal nematodes between these two species warrants investigation.
The aim of this study was to identify strongyle nematodes with zoonotic potential and to assess the risk factors associated with their cross-transmission
between small ruminants and humans in the locality of Foto-Dschang Cameroon. A total of 220 stool samples were collected from households where small
ruminants were raised, including 76 from humans and 144 from goats and sheep. Once collected, the samples were sent to the laboratory for qualitative and
quantitative coproscopic analysis. Digestive strongyle eggs found in the stool were identified based on their morphometric and morphological characteristics
using identification key. Risk factors were assessed through a questionnaire administered to small ruminant owners in the Foto group. As result, seven species of
digestive strongyles were identified in both humans and small ruminants. Trichostrongylus sp. 74 (55.1%) and Haemonchus contortus 25 (18.6%) were the most
prevalent. Among these strongyle nematodes, three species were involved in the cross-transmission between humans and small ruminants: Trichostrongylus sp,
Haemonchus contortus, and Cooperia curticei. The overall prevalence of digestive strongyles was 15.8% in humans and 61.8% in small ruminants. The primary
risk factors associated with the cross-transmission of digestive strongyles included poor food hygiene, lack of hand hygiene, close contact with small ruminants,
and stray farming practices. Although molecular identification of the strongyle found is needed for confirmation, the findings underscore the urgent need for the
implementation of control strategies to protect the health of local populations and ensure the sustainability of small ruminant farming.