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In 1874, Fanny Angelina married physician and bacteriologist Walther Hesse, an investigator of air quality and, specifically, air-borne microbes. In the Winter of 1880-81, Hesse became a research student with Koch in Berlin and experienced firsthand the difficulty of growing microbes on gelatine and the other growth media used at the time.

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"It's a big nationalist symbol, it's attached to sovereignty. Would the Venezuelans be willing to do whatever the US says and roll over? I don't think so."