The key difference between Brucella abortus and melitensis is that Brucella abortus is a gram-negative bacterium that causes brucellosis primarily in cattle, while Brucella melitensis is a gram-negative bacterium that causes brucellosis primarily in goats, sheep, and dromedary camels. Brucella abortus and B. melitensis are two causative agents of brucellosis. Brucellosis is a bacterial infection […]

The key difference between Mycobacterium tuberculosis and Mycobacterium leprae is that Mycobacterium tuberculosis is the causative agent of tuberculosis while Mycobacterium leprae is the causative agent of Hansen’s disease (leprosy). The family Mycobacteriaceae comprises a single genus known as Mycobacterium with over 190 species. The bacterial family includes pathogenic species such as Mycobacterium tuberculosis, Mycobacterium […]

The key difference between ETEC and EHEC is that ETEC is a pathotype of E. coli bacteria and is the main cause of travelers’ diarrhea, while EHEC is a pathotype of E. coli bacteria and is the main cause of bloody diarrhea. ETEC and EHEC are two major foodborne pathogens that cause serious public health […]

The key difference between Salmonella and Shigella is that Salmonella species cause salmonellosis in humans while Shigella species cause shigellosis in humans. Salmonella and Shigella are two bacterial genera that are gram-negative in nature. This means their cells contain a high amount of peptidoglycan layer, which is a mesh-like substance that provides structure and strength. […]

The key difference between halorhodopsin and bacteriorhodopsin is that halorhodopsin is a light-driven chloride pump found in archaea while bacteriorhodopsin is a light-driven proton pump found in archaea. Halorhodopsin and bacteriorhodopsin are heptahelical membrane proteins. They are also known as archaea rhodopsins. Generally, both of these are found in the purple membrane, a part of […]

The key difference between Corynebacterium diphtheriae and diphtheroids is that Corynebacterium diphtheriae contains metachromatic granules in polar regions while diphtheroids lack metachromatic granules but are arranged in a palisade manner. Corynebacterium is a genus of bacteria that are gram-positive and mostly aerobic. They are rod-shaped, so they are referred to as bacilli. They widely inhabit […]

The key difference between Salmonella typhi and Salmonella typhimurium is that Salmonella typhi is a bacterial serotype that causes typhoid fever in humans, while Salmonella typhimurium is a bacterial serotype that causes gastroenteritis in humans. Salmonella is a genus of gram-negative bacteria. This genus belongs to the family Enterobacteriaceae. Salmonella was named after the American […]

The key difference between Streptococcus pneumoniae and Streptococcus pyogenes is that Streptococcus pneumoniae is a bacterial species that causes pneumonia in humans, while Streptococcus pyogenes is a bacterial species that causes pharyngitis, cellulitis, and erysipelas in humans. Streptococcus is a genus of gram-positive coccus or spherical bacteria. Most Streptococci are oxidase negative, catalase-negative, and facultative […]

The key difference between Lactobacillus rhamnosus and Lactobacillus reuteri is that Lactobacillus rhamnosus is a bacterial species that may sometimes be pathogenic in people who have weakened immunity and infants, while Lactobacillus reuteri is a bacterial species that is generally non-pathogenic. Lactobacillus is a genus of bacteria that are generally gram-positive, rod-shaped, non-spore-forming, aerotolerant anaerobes […]

The key difference between strep and staph infection is that strep infection is a bacterial infection caused due to Streptococcus bacteria, while staph infection is a bacterial infection caused due to Staphylococcus bacteria. Bacteria are single-cell organisms. Most bacteria are not harmful. But some bacteria cause infections. Bacterial infections can affect the skin, throat, lung, […]