Salt. Salt was used to help prevent bacteria from causing meat to spoil way back in 2700 BC by the Chinese. Salt inhibits bacterial growth by causing the bacteria to swell with water and "lyse" or burst. This is why our tears are so salty, it's the bodies way of attempting to prevent bacterial contamination of the eye or blocking migration via the tear ducts.
Although it was good in preventing bacterial contamination of food it wasn't the best in treating existing disease.
The antibacterial effect of PENICILLIN was discovered by Alexander Fleming in 1928 or 1929 depending on your source. Fleming was not the tidiest of workers. He had left a Petri dish (plate) open on his bench. It was already loaded with staphylococci, bacteria that cause boils, carbuncles, abscesses, pneumonia and septicaemia. Spores of a fungal mold (Penicillium notatum) floated in through an open window and settled on a plate. A little time later it was covered but for some unknown reason not put into the incubator. Fleming promptly went off on holiday leaving it on the bench. On his return Fleming found the plate and noticed that the bacteria had not grown as they would have under normal summer conditions even outside the incubator and so, Fleming deduced, they had been inhibited or killed. Later he showed that the substance had been produced by that mould and so called it penicillin. The first antibiotic had been discovered.
2007-03-20 04:11:18
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answer #1
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answered by Julia Warhol 3
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It was accidentally discovered when mold and bacteria were both left in a petrie dish in a lab by that Flemming guy and the mold killed the bacteria. I believe it was discovered in the 1930's or near then because the soldiers used it in WWII. Try wikipedia and type in penicillin.
I would just like to add that my info was all from memory. I was pretty right on for whoever thumbs-downed my response.
2007-03-20 04:08:39
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answer #2
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answered by Eisbär 7
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Antibiotics are dosed a definite way because of the fact of notably complicated mathematical equations that have been derived as a effect of distinctive scientific study. Deviating from the stated dosing schedule can effect in much less-effective antibiotic pastime (so which you will no longer clean the an infection as nicely) and an greater occurrence of factor outcomes (so which you will actually make your self sense worse). some antibiotics actually haven't any greater desirable result at larger doses (such as you're taking), and merely ought to fulfill a definite minimum point interior the physique (and look after this point) to be the main effective. go away the antibiotic dosing to the specialists (pharmacists and physicians), and take it precisely as you have been informed by making use of your pharmacist. on your ear soreness, you are able to take nonprescription painkillers (like acetaminophen or ibuprofen)--communicate on your pharmacist although, as some persons have situations that would make one or the different favored.
2016-12-18 18:44:07
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answer #3
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answered by ? 4
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Ancient peoples used some natural herbs and ointments which contained antibiotic properties. These dated back to at least 3500 BC. In the late 1800s Louis Pasteur found that one bacteria could be used to kill another. Finally, in 1929 Sir Alexander Flemming found that some mold in a petri dish he accidentally left uncovered killed the staphylococci bacteria in the dish. He named the mold Penicillium and the drug extracted was Penicillin. This was the first true antibiotic.
2007-03-20 04:15:30
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answer #4
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answered by SA Writer 6
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Penicillin.... discovered by Alexander Fleming in 1928.
2007-03-20 04:06:54
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answer #5
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answered by Jack 6
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Actually, before Penicillin was a sulfa drug, Prontosil.
It was discovered by the German physician and chemist Gerhard Domagk in 1935. The sulfa family of drugs includes sulfadiazine, sulfamethizole (brand name: Thiosulfil Forte), sulfamethoxazole (Gantanol), sulfasalazine (Azulfidine), sulfisoxazole (Gantrisin), and various high-strength combinations of three sulfonamides.
Sulfa drugs kill bacteria and fungi by interfering with their metabolism. They were the "wonder drugs" before penicillin and are still used today.
2007-03-20 08:55:12
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answer #6
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answered by Anonymous
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penicillin,discovered by a man called Alexander Flemming,it was discovered at the beginning of twentieth century thanks for correction i am hopeless with names
2007-03-20 04:05:08
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answer #7
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answered by dumplingmuffin 7
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mold. yes seriously. penacillin. nobody rerally discovered it cause its been used for so long...
2007-03-20 04:03:04
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answer #8
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answered by dr.macgruder 4
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i think pennicillin
2007-03-20 09:35:27
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answer #9
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answered by sweet&crazy 2
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