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Currently you are able to watch "Monsters Inside Me - Season 4" streaming on Discovery+ or buy it as download on Apple TV.
A parasitic or viral attack is like a tumultuous roller coaster within the body that can take terrifying - and deadly - twists and turns. This season highlights victims who suffer hallucinations, septic shock, worms slithering in the eye and more, with diagnoses ranging from rat lungworms to the Bubonic plague and even worse.