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In 1928, a physician named Alexander Fleming observed that a mold in one of his Petri dishes was killing the bacteria he was trying to grow. This strain of mold led to one of the most significant medical discoveries in history: the antibiotic penicillin. Antibiotics soon became lifesavers. However, even back then, Fleming knew that bacteria could become resistant to penicillin. This video describes how widespread use of antibiotics in medicine, agriculture, and household products can lead to the evolution of microbes that are resistant to multiple antibiotics. Part of the "I Contain Multitudes" series.
(Source: DCMP)
Explore the basics of how antibiotics, antivirals, and vaccines work to help the immune system in the fight against pathogens. This episode briefly introduces the lines of defense in the immune system and discusses how vaccines can be important for herd immunity. Part of "The Amoeba Sisters" series.
Most people view antibiotics as miracle drugs. They can get rid of a whole range of infections. But because they are prescribed for so many different ailments, they are easy to overuse. The medical community is now at a crisis point because many of them simply don’t work anymore. Scientists are hunting urgently for new antibiotics--a challenge that is taking them to some remote and unusual places.
The invention of the lens goes far beyond the glasses that sit on one’s nose. Galileo used lenses to create the telescope and bring faraway things closer to mankind. At the opposite end of the spectrum, the lens exposed the microscopic world, leading to medical advancements including vaccination, anesthetics, and antibiotics.
Leaf cutter ants could be called the overachievers of the insect world. They are farmers, medicine makers, and green energy producers. With support from the National Science Foundation, bacteriologist Cameron Currie studies the complex evolutionary relationships between the ants, the fungi they cultivate and eat, and the bacteria that influence this symbiosis. At the University of Wisconsin-Madison, Currie works with the Great Lakes Bioenergy Research Center on campus to explore how the ants manage to degrade cellulose. Her goal is to discover new ways humans might break down biomass into biofuels. The bacteria component of the ant colony could also help scientists develop more effective antibiotics for human health and agriculture.
