A
condoms
barrier contraceptive
how common something is
prevalence
to stop something from happening
prevent
complete disappearance or destruction
eradication
firstly
to start with
when these factors combine
in this sort of situation
however
on the other hand
connected with work
occupational
the whole of the population
population-wide
before conception
preconception
diseases that can be passed on to another person
infectious diseases
advertising
promotion
controlling the number of children, using birth control.
family planning
danger or risk to a person's health
health hazard
passing a disease from one person to another
transmission
to a point
to some extent