The invisible invaders living inside your own cells

Science · Published 12 October 2026 Swipe more like this →

In short: Most people associate parasites with external organisms like leeches or tapeworms. However, some microscopic invaders are far more intimate, residing directly within your individual cells.

The video explores the biological reality of intracellular parasites, moving beyond common external parasites to examine organisms that inhabit the internal environment of host cells. It highlights the Rickettsia group as a primary example of these microscopic life forms.

By examining these internal residents, the content provides a deeper look at the complexity of microscopic biology and the ways in which life can find a home within the very building blocks of other organisms.

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