Tiny & Nasty: Images of Things That Make Us Sick

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Credit: CDC/ Dr. Stan Erlandsen; Dr. Dennis Feely
Being tiny doesn't stop viruses, bacteria, certain insects and other microscopic critters from causing all sorts of misery. But under the microscope, we…Read More »

can see them for what they truly are. This image, made using a scanning electron microscope, shows the free-swimming protozoan Giardia, which causes diarrhea and other symptoms when it infects the small intestine, often as a result of contaminated drinking water.    Less «
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