About two thirds of the countries mention that blood establishments also apply more sensitive nucleic acid testing (NAT), along with serological testing, although several countries also raised questions regarding the cost-benefit ratio of this relatively costly testing technique.
Oko dvije trećine zemalja navodi da krvne ustanove uz serološko testiranje primjenjuju i složenija testiranja nukleinske kiseline iako je nekoliko država članica također ukazalo na pitanje omjera troškova i koristi te relativno skupe tehnike testiranja.