Hepatitis C has a cure, but how do we find those who need it? Patrick Strudwick reports on one attempt to identify some of the estimated 100,000 undiagnosed people in the UK. »
You know you need to filter, treat or boil water you find in the wilderness. But why? Well, there's a number of answers, starting with words like E. Coli, Hepatitis A, Giardia and Cryptosporidiosis.