You are right Twigas we should not listen to any fools . . . :-)
The chances of getting Bilharzia can be reduced by not swimming in areas close to reeds. The snails that carry the Bilharzia parasite live in the reeds. If you stay in open or moving water, you are safer. Kande Beach does not have any of these reeds.
(tripadvisor.com/Travel-g293810-c55250/Malawi:Budget.Travel.html )
It is all about moving water. Is it totally safe - no it is not.Â
Now as it stands the problem and safety of the lake has not gone well these days. The risks are rising and there again are simple things to do to reduce the risks.
(independent.co.uk/life-style/health-and-families/health-news/backpackers-beware-bilharzia-lurks-in-the-lake-1596424.html )
This blog , though dated sums up how I really feel about the whole thing . . .
Some people say that you should never swim in lake Malawi because of the risk of getting bilharzia (evil parasite eating it's way through your skin)..But when you get there, you really can't worry about anything like bilharzia, you just have to swim or you die unsatisfied and sad. And there are easy medication to take against bilharzia, so I am not worried.
( miraij.blogg.se/2010/june/senga-bay-lake-malawi.html )