However, it is clear
that this approach only identifies the proportion of individ-uals with a parasitaemia above the detection limit for these
techniques. It does not, however, prevent transmission from
units of blood with parasitaemia too low to detect by micro-scopy or RDTs. There are additional strategies that can be
implemented, depending upon the geography of the country,
the periodicity of malaria (seasonal or year round), the type
and age of the donors, and the age, gender and underlying
condition of the patients, together with their existing malaria
status.