Sagar Aryal, PhD 
Image Source: Wikipedia Some of the characteristics are as follows: Basic Characteristics Properties (Aeromonas hydrophila) Capsule -ve Catalase +ve Citrate +ve Flagella +ve Gas +ve Gelatin Hydrolysis +ve Gram Staining … Read more
Laboratory diagnosis of Bacterial vaginosis caused by Gardnerella vaginalis Specimen: Vaginal discharge specimen A. Direct Microscopic Examination Bacterial Vaginosis (BV) is characterized by a foul-smelling discharge. A diagnosis/confirmation is done … Read more
Activation of complement involves the sequential proteolysis of proteins to generate enzyme complexes with proteolytic activity. Proteolytic cascades allow tremendous amplification because each enzyme molecule activated at one step can … Read more
Neisseria gonorrhoeae is an obligate human pathogen and is the etiological agent of gonorrhea. In the United States, it is the second most commonly reported communicable disease, with more than … Read more
Structure of Coltivirus Coltivirusparticles are 60–80 nm in diameter having two concentric capsid shells with a core that is about 50 nm in diameter. They have a relatively smooth surface capsomeric structure and … Read more
The classical pathway is a chain of events in which complement components react in specific sequences as a cascade resulting in cell lysis. It is activated by antibody bound to … Read more
Basic Characteristics Properties (Campylobacter fetus subsp. fetus) Capsule Capsule like surface (S-layer) proteins Catalase Positive (+ve) Gram Staining Gram-negative KMnO4 Positive (+ve) H2S Negative (-ve) Hemolysis Negative (-ve) Motility Positive … Read more
Pathogenesis of Leptospira interrogans Leptospires usually enter the body through the mucous membranes of the upper respiratory tract or the conjunctivae, or through abraded skin, following exposure to contaminated water, … Read more
Competitive ELISA is a technique used to estimate antibodies present in a specimen, such as serum. Steps/Process of Competitive ELISA Competitive ELISA Results Advantages of Competitive ELISA Protocol of Competitive ELISA For most … Read more
Basic Characteristics Properties (Clostridium perfringens) 20% Bile Positive (+ve) Capsule Positive (+ve) Catalase Negative (-ve) Flagella Negative (-ve) Gas Positive (+ve) Gelatin Hydrolysis Positive (+ve) Gram Staining Gram-positive Hemolysis Positive … Read more
