Articles on Penicillin

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For decades, researchers thought that bacteria become resistant to antibiotics if patients stopped taking these drugs early. Liudmila Chernetska/iStock via Getty Images Plus

‘Must I take all my antibiotics?’ Why infectious disease experts are rethinking this longstanding rule

For some illnesses, shorter courses of antibiotics work just as well as longer ones, but researchers are still working out the ideal timescales for many infections – and it may not line up with when you feel better.
Penicillin is a substance produced by penicillium mold. About 80% of people with a penicillin allergy will lose the allergy after about 10 years. Clouds Hill Imaging Ltd./Corbis Documentary via Getty Images

Are you really allergic to penicillin? A pharmacist explains why there’s a good chance you’re not − and how you can find out for sure

As many as 1 in 5 Americans believe they have a penicillin allergy, but just a tiny fraction actually do. In recent years, it’s gotten a lot easier to find out.
Gain-of-function experiments in the lab can help researchers get ahead of viruses naturally gaining the ability to infect people in the wild. KTSDesign/Science Photo Library via Getty Images

Gain‑of‑function research is more than just tweaking risky viruses – it’s a routine and essential tool in all biology research

From cancer immunotherapy and antibiotics to GMO crops and pandemic surveillance, gain of function is a cornerstone of basic research.
In the HBO series ‘The Last of Us,’ the parasitic fungus cordyeps mutates, and jumps from insects to humans and quickly spreads around the world, rendering its victims helpless to control their thoughts and actions. (HBO)

The fungus zombies in ‘The Last of Us’ are fictional, but real fungi can infect people, and they’re becoming more resistant

While ‘The Last of Us’ is a dramatic projection of a deadly fungal outbreak, it is based, if not in reality, in logic. And it’s a reminder that fungal infections are growing more resistant.
Penicillin ushered in the antibiotics revolution, with amazing results during war and peace. Science & Society Picture Library/SSPL via Getty Images

Guns, not roses – here’s the true story of penicillin’s first patient

Albert Alexander was the first known person treated with penicillin. While his ultimately fatal case is well known in medical histories, the cause of his illness has been misattributed for decades.

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