Shocking news today that Britain's double Olympic rower Andy Holmes has died after contracting Weil's disease. This is a water borne bug that can go from infected animal urine into the system if you drink polluted water or have a cut.
According to the BBC it kills 2 to 3 people a year and infects 60 - 70, more than I expected. I've heard warnings of Weil's disease so many times without hearing anyone who suffered from it that began to take a relaxed view on it: clearly that was wrong.
One reason I probably haven't encountered it is that the bug likes stagnant water, not flowing tidal ways like the Thames. According to the Guardian he died after sculling in Boston.