According to one estimate, the world will be using 50, 000 tons of antibiotics on people and animals by 2000.

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Using imipenem, one of three intravenous antibiotics effective against Acinetobacter, doctors are treating Locker's infection.

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It is commonly treated using carbapenems, a powerful class of antibiotics.

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Using honey as an intermediate treatment could also prolong the life of antibiotics.

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Surgeons started using infection-fighting dressings and sutures, giving additional doses of antibiotics after surgery and leaving dressings unchanged until three days post-procedure.

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They found a 2.5 times higher risk of death from heart disease in the first five days of using a Z-Pak when compared to another common antibiotic or no antibiotics at all.

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First, using antibiotics to treat an atherosclerotic patient who has had one heart attack reduces the risk of his suffering a second. (Rheumatoid arthritis, the most common arthritic variety, also responds to antibiotics in some patients, leading researchers to suspect that it, too, may sometimes be provoked by bacteria.) Second, research has come up with the glimmer of a mechanism.

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He said many of the necessary tools, such as antibiotics, had already been developed, but the challenge was using them appropriately in often poor countries.

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