evidence for evolution - resistant bacteria Flashcards
why do bacteria evolve rapidly?
because they reproduce rapidly
what was the first antibiotic?
pencillin
what is mrsa?
common strain of antibiotic resistant bacteria, found in hospitals
describe the process of how a resistant bacteria becomes popular in the population?
if we use antibiotic and all bacteria apart from resistant one is killed, resistant one survives and reproduces without competition and population of resistant bacteria increases.
why does a resistant strain spread?
resistant strain spreads because people are not immune to it and no effective treatment
what are the 3 ways we can reduce spread of resistant bacteria?
doctors shouldn’t prescribe antibiotics inappropiately, patients should complete their course of antibiotics and restrict use of antibiotics in farming
why should patients complete their course of antibiotics?
to ensure all bacteria is killed
what is the problem with development antibiotics?
expensive, slow and difficult to keep up with development resistant strains