Control by Antibiotics and Antiseptics Lab Report - amazonia.fiocruz.br

Control by Antibiotics and Antiseptics Lab Report Video

An antibiotic is a type of antimicrobial substance active against bacteria.

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It is the most important type of antibacterial agent for fighting bacterial infectionsand antibiotic medications are widely used in the treatment and prevention of such infections. A limited number of antibiotics also possess antiprotozoal activity. However, both classes have the https://amazonia.fiocruz.br/scdp/essay/mormon-bank-utah/the-imprint-of-words.php goal of killing or preventing the growth of microorganisms, and both are included in antimicrobial chemotherapy. Antibiotics have been used since ancient times.

Many civilizations used topical application of mouldy bread, with many references to its beneficial effects arising from ancient Egypt, Nubia, China, Serbia, Greece, and Rome. Antibiotics revolutionized medicine in the 20th century.

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Alexander Fleming — discovered modern day penicillin inthe widespread use of which proved significantly beneficial during wartime. However, the effectiveness and easy access to antibiotics have also led to their overuse [7] and some bacteria have evolved resistance to them. Antibiotics are used to treat or prevent bacterial infections, [12] and sometimes protozoan infections. Metronidazole is effective against a number of parasitic diseases. When an infection is suspected of being responsible for an illness but the responsible pathogen has not been identified, an empiric therapy https://amazonia.fiocruz.br/scdp/essay/writing-practice-test-online/jean-m-twenge-s-generation-me.php adopted. When the responsible pathogenic microorganism is already known or has been identified, definitive therapy can be started.

This will usually involve the use of a narrow-spectrum antibiotic.

The choice of antibiotic given will also be based on its cost. Identification is critically important as it can reduce the cost and toxicity of the antibiotic therapy and also reduce the possibility of the emergence of antimicrobial resistance.

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Antibiotics may be given as a preventive measure and this is usually limited to at-risk populations such as those with a weakened immune system particularly in HIV cases to prevent pneumoniathose taking immunosuppressive drugscancer patients, and those having surgery. They have an important role in dental antibiotic prophylaxis where their use hy prevent bacteremia and consequent infective endocarditis. Antibiotics are also used to prevent infection in cases of neutropenia particularly cancer-related. There are many different routes of administration for antibiotic treatment.

Antibiotics are usually taken by mouth.]