The info regarding Weils Disease is something all cavers should be fully aware of because of the nature of many caves having water in, and often being on farmland which seems to increase the risk, and who only knows what bacteria is in that water so it's really good to see it highlighted every now and again! The key is quick treatment so if you go down with fluey type symptoms soon after a trip, forcefully tell your doctor to test for leptospirosis and ask for precautionary antibiotics if you think there is any chance you might have been exposed as the time between showing flu like symptoms and death doesn't seem to be overly great! I was amongst a few who contracted it from a dig site about 15 or so years back, but thankfully we were all on the alert for symptoms as the first person to get it was thankfully recovering in hospital having treated the flu symptoms as nothing to worry about! My doctor was very complacent about the chances but pacified me by giving me antibiotics and a test and then phoned me personally when the test results came in to apologise for not taking me seriously and confirm i was taking those antibiotics! If you catch it early with antibiotics, recovery is very quick, where if it was actually flu, it's a virus, so the antibiotics would have no affect.
I would say, keep calm and carry on caving! Your chances of picking it up are probably reasonably slim, just always be aware of it's existance and the symptoms. Reality is anyone working around sewers, drainage, water courses or farm land or having hobbies in those environments needs to be aware. http://www.theguardian.com/lifeandstyle/2010/oct/26/weils-disease-andy-holmes is an example of another hobby that needs to think about it too.
I would say, keep calm and carry on caving! Your chances of picking it up are probably reasonably slim, just always be aware of it's existance and the symptoms. Reality is anyone working around sewers, drainage, water courses or farm land or having hobbies in those environments needs to be aware. http://www.theguardian.com/lifeandstyle/2010/oct/26/weils-disease-andy-holmes is an example of another hobby that needs to think about it too.