Kusiyana pakati pa njira yosungira yosasinthika ndi yosasinthika:
Pambuyo pa zitsanzo za kachilombo ka HIV, chifukwa chakuti kudziwika kwa PCR sikungatheke panthawi yosonkhanitsa, m'pofunika kunyamula zitsanzo za kachilombo ka HIV.Kachilombo kameneka kakhoza kusweka mu vitro posachedwa ndikukhudza kuzindikirika kotsatira.Chifukwa chake, yankho loteteza ma virus liyenera kuwonjezeredwa panthawi yosungira komanso kuyendetsa.Njira zosiyanasiyana zotetezera ma virus zimagwiritsidwa ntchito pazolinga zosiyanasiyana.Pakalipano, imagawidwa m'magulu osagwiritsidwa ntchito komanso osagwiritsidwa ntchito.Kuti mukwaniritse zofunikira zodziwikiratu komanso ma labotale osiyanasiyana ozindikira ma virus, ndikofunikira kugwiritsa ntchito njira zosiyanasiyana zotetezera.