Acinetobacter baumannii complex-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Acinetobacter baumannii complex (ABC) colony morphology on MacConkey agar after 48 hours of incubation-Showing mucoid lactose-fermenting colonies

Introduction Acinetobacter baumannii complex is a group of Gram-negative, non-fermenting bacilli known for causing healthcare-associated infections. It includes closely related species like A. baumannii, A. pittii, A. nosocomialis, and A. calcoaceticus. This complex thrives in hospital environments and poses a serious challenge due to its …

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Proteus hauseri-Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Proteus hauseri colony morphology on MacConkey agar of urine culture

Introduction Proteus hauseri is a Gram-negative, facultatively anaerobic bacillus in the Enterobacteriaceae family. It is closely related to other Proteus species and commonly found in soil, water, and the human gastrointestinal tract. Though less prevalent than P. mirabilis, P. hauseri can cause opportunistic infections—especially in …

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COVID-19 Antigen Test- Introduction, Principle, Test Requirements, Procedure, Result Interpretation, Clinical Significance and Disadvantage

COVID-19 Antigen Test-Positive

Introduction of COVID-19 Antigen Test SARS-CoV-2 antigen test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is used as a screening test on asymptomatic persons to detect or exclude Coronavirus Disease 2019 (COVID-19) or to determine whether a person who previously was diagnosed with COVID-19 …

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Enterobacter cloacae complex: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Enterobacter cloacae complex (ECC) colony morphology on CLED agar

Introduction The Enterobacter cloacae complex (ECC) is a group of closely related bacterial species, including Enterobacter cloacae, Enterobacter hormaechei, and others, that can cause a variety of infections, particularly in healthcare settings. ECC is a significant cause of nosocomial (hospital-acquired) infections, including bloodstream infections, pneumonia, and urinary …

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Klebsiella ozaenae : Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Klebsiella ozaenae colony morphology on CLED agar

Introduction of Klebsiella ozaenae Klebsiella pneumoniae subspecies ozaenae (Klebsiella ozaenae) is a Gram-negative bacterium (GNB), primarily associated with atrophic rhinitis (ozena), a chronic condition of the nasal cavity characterized by tissue thinning and unpleasant odor. It is also known as a normal inhabitant of the oral and …

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Candida-Antibody Testing-Introduction, Principle, Purpose, Types of antibody tests, Limitation, and More

Candida albicans growth on Biphasic medium (BHI agar and broth)-right (turbid)- No growth on left (clear)

Introduction Candida antibody testing measures immunoglobulins (IgG, IgA, and IgM) antibodies in the blood to help detect current or past Candida infections. These antibodies are produced in response to the presence of Candida in the body, assisting the immune system in fighting off the fungus. Principle Purpose …

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Laboratory Requirements for Evaluating Mushroom Antifungal Activity against Clinical Dermatophytes

Laboratory Requirements for Evaluating Mushroom Antifungal Activity against Clinical Dermatophytes

Introduction To effectively evaluate mushrooms’ antifungal activity against clinical dermatophytes, laboratories require specialized equipment and techniques for fungal isolation, identification, and susceptibility testing. These include media for fungal culture, microscopy for morphological identification, and standardized methods like agar-based disk diffusion (ABDD) or broth microdilution for antifungal …

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Biosafety Cabinet (BSC)-Introduction, Purpose and Function,  Working Mechanism, Types, and Application

Biosafety Cabinet (BSC)-Introduction, Purpose and Function,  Working Mechanism, Types, and Application

Introduction of Biosafety Cabinet (BSC) A biosafety cabinet (BSC) is a specialized enclosed, ventilated laboratory workspace that is designed for safely handling materials contaminated with pathogens or toxins. It protects the operator, the product being worked on, and the environment. BSC uses high-efficiency particulate air (HEPA)  filters to …

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