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Infections with carbapenem-resistant Klebsiella pneumoniae were associated with organ/stem cell transplantation, mechanical ventilation, exposure to antimicrobials, and overall longer length of stay in hospitals. [10] People most likely to acquire carbapenem-resistant bacteria are those already receiving medical attention. [10]
These bacteria exhibit an unusually high level of intrinsic resistance to antibiotics due to their expression of a wide range of resistance mechanisms. Antibiotics cross the outer membrane of Pseudomonas and Acinetobacter approximately 100 times more slowly than they cross the outer membrane of Enterobacteriaceae , due in part to their use of ...
Its exact geographical origin, however, has not been conclusively verified. In March 2010, a study in a hospital in Mumbai found that most carbapenem-resistant bacteria isolated from patients carried the bla NDM-1 gene. [16] Later, the journal editor apologized for allowing the name.
The concern is that carbapenem is often used as a drug of last resort when battling resistant bacterial strains. New slight mutations could result in infections for which healthcare professionals can do very little, if anything, to treat patients with resistant organisms. A number of mechanisms cause carbapenem resistance in the Enterobacteriaceae.
Carbapenems are the treatment of choice for serious infections due to ESBL-producing organisms, yet carbapenem-resistant (primarily ertapenem-resistant) isolates have recently been reported. [16] ESBL-producing organisms may appear susceptible to some extended-spectrum cephalosporins. However, treatment with such antibiotics has been associated ...
β-Lactam antibiotics are indicated for the prevention and treatment of bacterial infections caused by susceptible organisms. At first, β-lactam antibiotics were mainly active only against gram-positive bacteria, yet the recent development of broad-spectrum β-lactam antibiotics active against various gram-negative organisms has increased their usefulness.
One use of the concept of biocontainment is related to laboratory biosafety and pertains to microbiology laboratories in which the physical containment of pathogenic organisms or agents (bacteria, viruses, and toxins) is required, usually by isolation in environmentally and biologically secure cabinets or rooms, to prevent accidental infection ...
A subsidiary aspect of infection control involves preventing the spread of antimicrobial-resistant organisms such as MRSA. This in turn connects to the discipline of antimicrobial stewardship —limiting the use of antimicrobials to necessary cases, as increased usage inevitably results in the selection and dissemination of resistant organisms.