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английский) 3:
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the term "antibiotic" means the (anti -), bios, life) "for life". it shows that antibiotics kill some of the simple organisms.the effect of antibiotics was discovered by fleming in 1929. Penicillin wasthe first of the antibiotics.it is effective against many infections. Penicillin is given orally,intramuscularly and topically.Streptomycin is effective in many cases when penicillin can"t help. it issoluble in water. it is not intramuscularly and orally.Erythromycin is used by patients who are hypertensive to penicillin.Erythromycin is used in water solutions for ear and nose infections. it is also made in tablets.Neomycin is effective against a wide variety of microbes. it gives little or noallergic reactions. it is not orally and topically. in some cases neomycin is used as a people dressing instead of ointment.
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