When citing a web site, the same principles apply as for books or journals.
Tuberculosis (TB) is caused by the bacterium Mycobacterium tuberculosis, and the World Health Organization estimates that more than 350 cases occur per 100 000 people in Sub-Saharan Africa¹. In South Africa, the incidence of TB is seventh highest in the world². Once diagnosed, the most important way to cure TB is to ensure that the entire course of prescribed medication is completed³.
References