Schistosoma: Life Cycle, Pathogenesis, and Laboratory Diagnosis
A clear guide to Schistosoma (blood flukes) for medical and laboratory students: how the three main species differ, why the egg and not the worm causes disease, and how lateral and...
A Guidebook on Clinical Science
Medical Microbiology & Laboratory Diagnosis
A comprehensive resource on pathogenic bacteria, viruses, fungi, and parasites — from culture media and staining to clinical laboratory diagnosis, and self-assessment with interactive MCQs.
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Fasciola hepatica: Life Cycle, Pathogenesis, and Laboratory Diagnosis
A clear guide to Fasciola hepatica (the common liver fluke) for medical and laboratory students: how it reaches the bile ducts, why the disease has an acute and a chronic phase, ho...
Clonorchis and Opisthorchis: Life Cycle, Pathogenesis, and Diagnosis
A clear guide to the small liver flukes Clonorchis sinensis and Opisthorchis for medical and laboratory students: how raw fish carries them to the bile ducts, why they are linked t...
Interferon-Gamma Release Assay (IGRA): Principle, Procedure, and Interpretation
How the IGRA (QuantiFERON-TB Gold, T-SPOT.TB) works, how to run it, and how to read positive, negative, and indeterminate results, including why it is not affected by BCG.
Chemiluminescence Immunoassay (CLIA): Principle, Procedure, and Interpretation
How chemiluminescence immunoassay (CLIA) works, how it differs from ELISA and RIA, and how to read the result, including the cutoff index and why CLIA is more sensitive.
Nephelometry and Turbidimetry: Principle, Difference, and Applications
How nephelometry and turbidimetry measure antigen-antibody complexes by light, how the two differ (scattered vs. transmitted light), and why antigen excess causes a falsely low res...
Flow Cytometry: Principle, Procedure, and Interpretation
How flow cytometry counts and identifies cells using light scatter and fluorescence, how to read a dot plot and gating, and how the CD4 count is measured.
Automated Identification and Antimicrobial Susceptibility Testing
How automated systems identify bacteria and generate MICs, how they differ from manual methods, and when an automated result should be confirmed before it is reported.
Microsporum: Species, Identification, and the Rice Grain Test
The Microsporum species that matter in the lab: spindle-shaped thick-walled macroconidia, colony appearance of M. canis, M. gypseum, and M. audouinii, Wood's lamp fluorescence, and...
Epidermophyton floccosum: Identification and Microscopic Appearance
How to identify Epidermophyton floccosum: khaki-green powdery colony, club-shaped (beaver-tail) macroconidia in clusters, and the key feature that it produces macroconidia only and...
Hair Perforation Test: Principle, Procedure, and Interpretation
The in vitro hair perforation test for dermatophytes: principle, procedure, and how to read it. Which organisms are positive, and how it separates T. mentagrophytes from T. rubrum...
Strongyloides stercoralis: Life Cycle, Pathogenesis, Treatment, and Laboratory Diagnosis
Why can Strongyloides stercoralis persist for decades and then turn deadly? Complete life cycle, the autoinfection and hyperinfection mechanism, clinical features, treatment with i...
Trichuris trichiura (Whipworm): Life Cycle, Pathogenesis, Treatment, and Laboratory Diagnosis
Why does Trichuris trichiura cause rectal prolapse in children but no lung symptoms, unlike Ascaris and hookworm? Complete whipworm life cycle, pathogenesis, treatment, and the bar...
Enterobius vermicularis (Pinworm): Life Cycle, Pathogenesis, Treatment, and Laboratory Diagnosis
Why does pinworm cause itching at night and why is the whole household treated at once? Complete Enterobius vermicularis life cycle, the perianal egg-laying and retroinfection that...