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Gongylonematiasis in the common marmoset (Callithrix jacchus)
1Deutsches Primatenzentrum GmbH, Abteilung Pathologie und Tierärztiche Versorgung, Göttingen, Germany.
Summary
Gongylonematiasis, a helminth infection, affected common marmosets in Germany. Transmission occurred via infected females and cockroaches, causing itching and inflammation in marmosets.
Area of Science:
- Veterinary Parasitology
- Primate Health
- Zoonotic Diseases
Background:
- Gongylonematiasis is a parasitic nematode infection.
- Common marmosets are valuable models in biomedical research.
- Understanding disease transmission is crucial for animal welfare and research integrity.
Observation:
- Two cases of gongylonematiasis were identified in common marmosets across two German research facilities.
- Infection spread between colonies via an infected female and within a colony by German cockroaches (Blatella germanica).
- Affected marmosets exhibited perioral itching, scratching, edema, and hyperemia.
Findings:
- Histopathology revealed adult helminths primarily in the mucous membranes of the lips, with less frequent presence in cutaneous lip parts, tongue, but not esophagus or abdominal organs.
- Inflammatory infiltrates, including neutrophils, lymphocytes, and degranulated mast cells, were observed in affected tissues.
- Secondary lesions, such as microabscesses on the lips, resulted from intense scratching.
Implications:
- This study highlights the potential for gongylonematiasis transmission in research primate colonies.
- Cockroaches serve as intermediate hosts, emphasizing the need for stringent pest control in research facilities.
- Effective management strategies are essential to prevent disease spread and maintain the health of marmoset research populations.