The doctor and Scottish bacteriologist Sir Alexander Fleming, who lived between 1881 and 1955, investigating antiseptics able to fight infectious diseases that were not toxic to animals but to the causal agents. At this stage of their study found that accidentally had developed a fungus that destroyed certain microorganisms. Penicillium notatum, the name of this species discovered by Fleming, has inhibitory effects of streptococci, thanks to their antibiotic properties, but is not very toxic to animals and man. Thus, in 1929 and studied Fleming isolated penicillin, a substance that was applied only in the 1940s and is effective against germs responsible for diseases such as pneumonia, pneumonia, pleurisy, gas gangrene, Anthrax, endocarditis and meningitis, including others.
Application of penicillin can produce, on occasion, adverse effects on the body, including skin rashes and swollen joints in patients sensitive to penicillin.
We have investigated other antibiotics effective against certain infections: Streptomycin, used against pulmonary tuberculosis, tuberculous meningitis and urinary tract infections, the neomycin, similar to previous erythromycin, isolated in 1952, similar to penicillin, and much more .