Useful links:

The Health & Safety Executive publishes information on Leptospirosis at this
weblink: http://www.hse.gov.uk/pubns/indg84.pdf

ROSPA (The Royal Society for the Prevention of Accidents) has some excellent
guidance at this link:
http://www.rospa.com/leisuresafety/adviceandinformation/watersafety/weils-di
sease.aspx

Symptoms:

Flue/Fever

Muscular Pains/Aches

Loss of Appetite

Sickness/Vomiting

Incubation Period 7 to 13 days

Action:

Go to your doctor promptly and ensure you highlight contact with water and
the possibility of Weils Disease.

Treatment:

Antibiotics are effective once a blood test has confirmed the presence of
Leptospirosis/Weil's disease.

I strongly recommend that all paddlers ensure that their doctor is aware
that they take part in watersports activities on the Cam if they have any
symptoms as described above. There are both cattle and rats present in and
around the Clubhouse area.

As a sensible precaution:

Wash hands immediately after outings and keep water bottles sealed in
plastic bags in the boat - not open to the water that may gather in the
bottom of the boat during outings. Take great care of your skin - cover cuts
to your hands and arms with waterproof plasters or plastic skin spray.
Consider NOT paddling if you have a deep cut to your skin which could come
into frequent contact with river water.

Finally incidents of Weil's disease are relatively infrequent, but can be
devastating if they occur, please take every care and appropriate steps to
minimise your risk of exposure and infection.