| Popis: |
We refer to sexually transmitted diseases as the illnesses caused by pathogens which are transmitted mostly via sexual contacts. Although STDs are a very heterogenous set of diseases, there is a common property closely related to their dissemination: the spread of STDs over the population is not homogenous, but it depends on the sexual habits of the population. More precisely, population splits in two groups: those who have a risky sexual behaviour and those who take care during sexual contacts, which is known as the core. |
