News tagged with drug resistance

Related topics: antibiotics · cancer cells · breast cancer · hiv · malaria

Canadian 'giant' of HIV research drowns

Canadian scientist Mark Wainberg—described as a "giant" of HIV science and who had recently been working on finding a cure for the condition—has died at the age of 71, UNAIDS said on Thursday.

Apr 13, 2017
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Too many antibiotics for New Zealand children

Almost all New Zealand children have taken antibiotic medications by the time they are five years of age, according to new research from the University of Auckland's Centre for Longitudinal Research – He Ara Ki Mua.

Mar 16, 2017
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Drug resistance

Drug resistance is the reduction in effectiveness of a drug in curing a disease or improving a patient's symptoms. When the drug is not intended to kill or inhibit a pathogen, then the term is equivalent to dosage failure or drug tolerance. More commonly, the term is used in the context of diseases caused by pathogens.

Pathogens are said to be drug-resistant when drugs meant to neutralize them have reduced effect. When an organism is resistant to more than one drug, it is said to be multidrug resistant.

Drug resistance is an example of evolution in microorganisms. Individuals that are not susceptible to the drug effects are capable of surviving drug treatment, and therefore have greater fitness than susceptible individuals. By the process of natural selection, drug resistant traits are selected for in subsequent offspring, resulting in a population that is drug resistant.

This text uses material from Wikipedia, licensed under CC BY-SA

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