Today, we’re taking a page straight out of Dickens and talking about tuberculosis- a disease as rich in history as it is in bloody sputum. We'll travel the path of an individual Mycobacterium tuberculosis as it makes it way down the respiratory tract of its victim and waits patiently, hidden and untouchable. We’ll learn why Nicole Kidman's skinny physique was so en vogue in Moulin Rouge, talk about ‘The Royal Touch’, which isn’t quite as creepy as it sounds, cover enough of Koch's postulates that you can give yourself an honorary microbiology degree, and oh so much more.

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