Treponema pallidum (well known scientifically as T. pallidum subsp. pallidum) is a Gram variable or Gram-negative, microaerophilic or anaerobic, motile, spiral-shaped bacterium (spirochaete) that is […]
Helicobacter pylori bacterium is a microaerophilic, urease-producing, Gram-negative, motile, urease-positive, oxidase-positive, catalase-positive and spiral-shaped bacterium that inhabits the stomach, intestinal tract and oral cavity of […]
The clinical and laboratory diagnosis of infectious diseases (including those caused by pathogenic bacteria and fungi) in the microbiology laboratory is mainly based on the […]
Rickettsia prowazekii is an obligate intracellular parasite that causes a variety of rickettsial related diseases in humans. It is the main causative agent of epidemic […]
Streptococcus pyogenes is a Group A Streptococcus species that is non-spore forming, Gram-positive, non-motile, round to ovoid bacterium that occurs in chains, singly (as coccus) […]
Living organisms vary in terms of their mode of nutrition i.e., how they feed or obtain their food. Some organisms are known as autotrophs because […]
Proteus mirabilis is a Gram-negative, motile, non-capsulated, facultative anaerobic, non-lactose fermenting and pleomorphic bacillus in the genus Proteus and family Enterobacteriaceae. P. mirabilis is mostly […]
Bioterrorism is an archaic and primitive practice of warfare that predates the development of the “Germ Theory of Disease” by Robert Koch. The Romans, ancient […]
Gardnerella vaginalis in association with other bacteria is the causative agent of bacterial vaginosis (BV) in women. G. vaginalis is a Gram variable, encapsulated, facultative, […]
Klebsiella pneumoniae is a Gram-negative, encapsulated, lactose-fermenting, non-motile, facultative rod in the genus Klebsiella and family Enterobacteriaceae. In addition to ‘O’ and ‘H’ antigens, K. […]
Antifungal agents are antimicrobial agents that kill or inhibit the growth of pathogenic fungi. Antimicrobial agents that inhibit the growth of pathogenic fungi are generally […]
Prebiotics are non-digestible food ingredients that beneficially affect the host by selectively stimulating the growth and/or activity of one or a limited number of bacteria […]