How did Alexander Fleming discover penicillin?
In 1928, Alexander Fleming returned from vacation and noticed that a mold growing in one of his bacteria dishes had killed the bacteria around it. That mold produced penicillin.
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Bacteria Facts
Bacteria facts and facts about bacterias.
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Did Fleming warn about antibiotic resistance?
In his 1945 Nobel lecture, Alexander Fleming warned that misusing penicillin could lead bacteria to become resistant, a prediction that has become a major global health problem.
How many bacteria live in the gut?
The gut is home to trillions of bacteria, known as the gut microbiome.
Does the appendix have a purpose?
The appendix may store helpful gut bacteria.
Who first saw bacteria?
Antonie van Leeuwenhoek first saw bacteria in the 1670s and called them "animalcules."
Who invented the petri dish?
The petri dish was invented by Julius Petri in 1887, and Fanny Hesse suggested using agar to grow bacteria in it.
Can stethoscopes spread germs?
Studies have found that stethoscopes can carry bacteria.
Where does CRISPR come from?
CRISPR gene editing is adapted from a natural immune system that bacteria use to fight viruses.
Who discovered CRISPR in bacteria?
Spanish scientist Francisco Mojica discovered CRISPR sequences in bacteria in the 1990s.