About us
The Wellcome Trust Research Laboratory (WTRL), Division of Gastrointestinal Sciences at Christian Medical College (CMC), Vellore is a leading multi-disciplinary clinical and public health research laboratory with advanced equipment in areas of microbiology, virology, parasitology, cell culture (including organoids), molecular biology with NGS, immunology (with FACS), biochemistry and pathology (with electron microscopy facility).
Diagnostic Services: Since 2004, WTRL has been offering parasitology diagnostic services in CMC, Vellore receiving approximately 300 to 350 samples per day, with annual turnover of >90,000 samples. A majority of samples received are for microscopy-based detection of parasites in stool samples. Specialized stains used for parasite identification include Modified Ziehl-Neelsen, Standard Trichrome, Modified Trichrome, Giemsa, and Field stain. The frequently detected parasites are Giardia duodenalis, Hookworm, Strongyloides stercoralis, Ascaris lumbricoides, Rodentolepis nana, and Enterobius vermicularis.
PT Co-ordinator
Technical Manager
Assistant Professor of Microbiology
Quality Manager
Associate Research Officer
Laboratory Supervisor
Gr. Medical Laboratory Technician
Monthly case discussions
July, 2025
A 72-year-old male labourer from Dhaka presented with a 2-year history of progressively worsening, intensely pruritic skin lesions. The symptoms began on his right thigh and gradually spread to involve the entire body. On examination, he had ill-defined hyperkeratotic, mildly lichenified plaques with mild scaling over the intertriginous areas, along with multiple papules and nodules…
June, 2025
A 27-year-old man from Korea presented with vague right upper abdominal pain and mild eosinophilia. Radiological imaging showed biliary tract dilatation. Hematoxylin & Eosin staining of the liver tissue biopsy showed the following. Answer Follow the discussion in X (Formerly knows as Twitter)
May, 2025
A 2-year-old boy from a peri-urban slum presents with 8 days of profuse watery diarrhoea (6–7 episodes/day), low-grade fever, and reduced appetite. No blood or mucus in stool. On examination, mild dehydration was noted, weight <3rd percentile. No clinical improvement after empiric treatment with antibiotics. Stool microscopy with modified Ziehl-Neelsen stain showed the following. Answer…