Introduction of E. coli Escherichia coli is a member of the family, Enterobacteriaceae and it is a Gram-negative, aerobe, and facultative…
Introduction of Enterobacteriaceae The family Enterobacteriaceae was first proposed by Rahn in 1936 and it is a very large group…
Fig. Lactose Fermenter (LF)-Pink colony-Right side and Non-Lactose Fermenter (NLF)-pale or no color change-Left side Gram-Negative Bacteria on MacConkey agar…
Introduction of India Ink Preparation Cryptococcal meningitis occurs in immunodeficient patients and when meningitis is clinically suspected, for example, patients…
Introduction of Haemophilus The genus Haemophilus is a pleomorphic Gram-negative coccobacilli fastidious bacteria and thus they do not grow on an ordinary medium like…
Definition of Dermatophytes Dermatophytes are a common label for a group of three types of keratinophilic fungi that infect keratinized tissues…
Introduction of Staphylococcus and Micrococcus Staphylococcus (pleural-staphylococci) is spherical, non-motile, gram-positive in singles, pairs, and clusters. On nutrient agar, growth…
Introduction of Streptococcus pneumoniae and Viridans streptococci Streptococcus pneumoniae is also called pneumococcus and pneumococcus is the commensals of the…
Introduction of Amoebic dysentery and Bacillary dysentery Amoebic dysentery or amoebiasis is an intestinal infection caused by a unicellular (protozoan)…
Introduction of Wright’s stain Wright’s stain is also called a hematologic stain and it is one of the Romanowsky stains, which…