%0 Journal Article %T Antimicrobial resistance: the global public health challenge %A Jayant D Deshpande %A Mohini Joshi %J International Journal of Students' Research %D 2011 %I International Journal of Students' Research %R 10.5549/ijsr.1.2.41-44 %X Antimicrobial resistance is one of the biggest challenges to face global public health at the beginning of the third millennium. Antimicrobial resistance and its global spread threaten the continued effectiveness of many medicines used today to treat the sick. Antibiotic resistance is usually associated with significant morbidity, longer hospitalization, excess costs and mortality. Many factors contribute to the unnecessary use of antibiotics including the knowledge and beliefs of doctors and consumers, direct patient requests, perceptions of patient demand, culture and norms and advertisements and other promotional literature distributed by the pharmaceutical companies. Self-medication with antimicrobials is often cited as a major factor contributing to drug resistance. The microorganisms employ several mechanisms in attaining multidrug resistance such as they no longer rely on a glycoprotein cell wall; enzymatic deactivation of antibiotics, decreased cell wall permeability to antibiotics and altered target sites of antibiotic. Efflux mechanisms to remove antibiotics and increased mutation rate are some of the other important mechanism for the antimicrobial resistance. Optimal use of existing antimicrobial agents, using alternative treatment options, reducing the need for antimicrobials by increasing immunity, education of health professionals and patients, antibiotic policies and implementation of infection control measures are the strategies aimed at prevention of emergence and spread of antibiotic resistance. %U http://www.ijsronline.com/index.php/IJSR/article/view/78/162