12/21/2023 0 Comments Gram negative bacteria list![]() Francisella tularensis is the agent of human and animal tularemia. Escherichia coli, Klebsiella, Proteus, Enterobacter, Serratia, Citrobacter, Morganella, Providencia, Cronobacter, and Edwardsiella are enteric gram-negative. Francisellaspeciesįrancisella is an intracellular, facultative, gram-negative coccobacillus. Kingella kingae is recognized increasingly as a cause of skeletal infections (osteomyelitis/septic arthritis ) in children. Kingella kingae is a species of Gram-negative aerobic coccobacilli. Acinetobacter may also “colonize” or live in a patient without causing infection or symptoms, especially in tracheostomy sites or open wounds. Acinetobacter causes a variety of diseases, ranging from pneumonia to serious blood or wound infections, and the symptoms vary depending on the disease. ![]() Acinetobacter baumannii accounts for about 80% of reported infections. Outbreaks of Acinetobacter infections typically occur in intensive care units (ICUs) and healthcare settings housing very ill patients. It causes sexually transmitted infections, chancroid, a major cause of genital ulceration in developing countries characterized by painful sores on the genitalia. Non-capsulated strains usually cause localized infections such as otitis media, sinusitis, and conjunctivitis. Pathogenic Escherichia coli associated with diarrhea. Campylobacter: Infection with less common species and related bacteria. Infections most commonly associated with encapsulated strains of Haemophilus influenzae include meningitis, epiglottitis, cellulitis with bacteremia, septic arthritis, ad pneumonia. Acinetobacter infection: Epidemiology, microbiology, pathogenesis, clinical features, and diagnosis. These tiny, pleomorphic gram-negative bacteria range in shape from round (cocci) to short, thin rods (bacilli) hence the bacteria are called “coccobacilli. Gram Negative CoccobacilliĪ coccobacillus is a type of bacterium with a shape intermediate between cocci and bacilli, i.e., they are very short rods that may be mistaken for cocci. They are rarely the sole or predominant organism in sputum smears of patients with pneumonia. catarrhalis also causes exacerbations of chronic obstructive pulmonary disease (COPD) and chronic bronchitis in elderly patients. Enterobacterales (Citrobacter species, Enterobacter Klebsiella, Enterobacter, and Serratia Infections The gram-negative bacteria Klebsiella, Enterobacter, and Serratia are closely related normal intestinal flora that rarely cause disease in normal hosts.Diagnosis is by. catarrhalis can cause pneumonia, especially in patients with alcoholism or chronic obstructive lung disease. M.catarrhalis causes acute, localized infections such as sinusitis, bronchopneumonia, and life-threatening, systemic diseases including endocarditis and meningitis. They are nonphotosynthetic species and have a unique developmental cycle that involves the formation of fruiting bodies. Moraxella catarrhalis, a gram-negative diplococcus, is an exclusively human pathogen and is a common cause of otitis media in infants and children. Myxobacteria are gliding bacteria that are Gramnegative, aerobic rods. Disseminated gonococcal diseases are pelvic inflammatory disease, bacteremia, arthritis, and metastatic infections at other body sites. Other localized conditions include pharyngitis, anorectal infection, and conjunctivitis (ophthalmia neonatorum). Outer membrane: Under the capsule, gram-negative bacteria have an outer membrane that protects them against certain antibiotics. Genital infections include purulent urethritis in males and cervicitis in females. ![]() It is a urogenital pathogen that is transmitted by sexual contact. Less common infections include conjunctivitis, pneumonia, and sinusitis. gram - negative bacteria isolated from a slimy coating found on four cellophane - wrapped frozen lamb legs stored at 250 F for 32 weeks. Bacteremia leads to thrombocytopenia, disseminated intravascular coagulation, and shock. Meningitis may be accompanied by the appearance of petechiae (rash) associated with meningococcal bacteremia (i.e.,meningococemia). It is a leading cause of fatal bacterial meningitis. meningitidis (Meningococci) is a gram-negative, nonsporeforming diplococcus. This is thought to promote the ability of the toll-like receptor pair TLR-4/TLR4 to respond to the LPS.Neisseria gonorrhoeae (Gram-negative diplococci) N.meningitidis The LPS binds to a LPS-binding protein circulating in the blood and this complex, in turn, binds to a receptor molecule (CD 14) found on the surface of body defense cells called macrophages. ![]()
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