Polymerase Chain Reaction (PCR): Introduction, Principle, Types, Application, and Keynotes

Amplicons or DNA or RNA fragments of amplification or replication events

Introduction Polymerase Chain Reaction, commonly known as PCR, is a powerful and widely used molecular biology technique that allows for the amplification of specific DNA sequences. Developed by Kary B. Mullis in 1983, PCR revolutionized the field of genetics and has become an essential tool …

Read more

Chlamydia trachomatis: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Chlamydia trachomatis is a gram-negative bacterium and is an important human pathogen known for causing several diseases. It is an obligate intracellular bacterium, meaning it can only survive and reproduce inside host cells. C. trachomatis primarily infects epithelial cells of the mucous membranes in …

Read more

Malassezia: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Gram-positive to variable yeast cells and short hyphae of Malassezia in Gram staining of culture

Introduction Malassezia is a genus of yeast-like fungi that belongs to the class Malasseziomycetes. These fungi are part of the normal skin microbiota of humans and other animals, commonly found on the skin surfaces, particularly in sebum-rich areas such as the scalp, face, chest, and …

Read more

Sporothrix schenckii: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Sporothrix schenckii colony morphology on SDA

Introduction Sporothrix schenckii is a dimorphic fungus and the causative agent of the infection known as sporotrichosis or “rose gardener’s disease.” It is a relatively common fungal pathogen found worldwide, and it primarily affects the skin and subcutaneous tissues, although it can occasionally spread to …

Read more

Cryptococcus neoformans: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Abundant Yeast cells with occasional hyphae of Cryptococcus neoformans in India ink preparation of culture microscopy

Introduction Cryptococcus neoformans is a pathogenic fungus and one of the leading causes of fungal infections in humans. It belongs to the genus Cryptococcus, which includes several species, but C. neoformans is the most clinically significant one. This fungus primarily affects immunocompromised individuals, such as …

Read more

Strongyloides: Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Strongyloides- Introduction, Morphology, Pathogenicity, Lab Diagnosis, Treatment, Prevention, and Keynotes

Introduction Strongyloides is a genus of parasitic nematodes (roundworms) that includes the species Strongyloides stercoralis, commonly known as the human threadworm or threadworm. These tiny worms are parasitic in nature and can infect humans and other animals. Here is an introduction to Strongyloides: Morphology Strongyloides …

Read more