Dr. Manuel Chirino-Trejo

People, dogs and bacteria

September 04th, 2011

When penicillin was first introduced in the early 1940s, it was effective against nearly all bacteria. But nearly 70 years later, penicillin has lost its punch: while bacteria such as Streptococci are still frequently susceptible to the antibiotic, Staphylococcus aureusare often resistant. “Antibiotic resistance has emerged very quickly because bacteria have a very short generation time and can evolve and …

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