Water undergoes boiling and during this stage microorganisms are killed, and since bacteria and viruses are organic solids, they are left during the process.
Ku vandzekeriwa kulava ku endliwa hi vukheta naswona kubasile eka xitepe lexi hikuva laha kunga nghena nati bacteria naswona ti microorganisms tingaka tinga dlayiwi hi mahiselo yale henhla eka nkarhi lowu.