Abstract:
:The emergence of antibiotic resistance is primarily due to excessive and often unnecessary use of antibiotics in humans and animals. Risk factors for the spread of resistant bacteria in hospitals and the community can be summarised as over-crowding, lapses in hygiene or poor infection control practices. Increasing antibiotic resistance in bacteria has been exacerbated by the slow pace in developing newer antibiotics. Methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE) and multiresistant Gram-negative bacteria are spread primarily by direct or indirect person-to-person contact. Independent risk factors for MRSA include the use of broad spectrum antibiotics, the presence of decubitus ulcers and prosthetic devices while those for VRE include prolonged hospitalisation and treatment with glycopeptides or broad spectrum antibiotics. For the spread of resistant Gram-negative bacteria risk factors include urinary catheterisation, excessive use of antibiotics and contamination of humidifiers and nebulisers. The spread of penicillin-resistant pneumococci (PRP) and drug-resistant and multidrug-resistant tuberculosis (MDRTb) is due to airborne transmission. Risk factors for the spread of PRP include overcrowding, tracheostomies and excessive use of penicillins for viral respiratory infections; for MDRTb they include poor compliance, convergence of immunosuppressed patients, delayed diagnosis or treatment, and poor or inadequate ventilation and isolation facilities. Recent developments in the genomic mapping of many bacteria and advances in combinatorial chemistry promise to usher in a new era of antibiotic development. While this may result in our regaining some of the ground lost to resistant bacteria, there will still be a continuing need to minimise the spread of antibiotic resistance through the rational use of antibiotic agents and stringent infection control practice.
journal_name
Drugsjournal_title
Drugsauthors
Rao GGdoi
10.2165/00003495-199855030-00001subject
Has Abstractpub_date
1998-03-01 00:00:00pages
323-30issue
3eissn
0012-6667issn
1179-1950journal_volume
55pub_type
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