Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Whakawhiti: Ko te wā matapihi te wā mai i te mate tae noa ki te whakamātautau ka kitea he huringa. Ko te toharite o te wa matapihi me nga whakamatautau antibody HIV-1 he 25 ra mo te momo B. Ko te whakamatautau Antigen ka whakaiti i te waa matapihi ki te 16 ra, me te whakamatautau waikawa karihi (NAT) ka whakaiti i tenei waa ki te 12 ra.Ko te mahinga o nga whakamatautau hauora ka whakaahuatia i runga i:  Patai: He aha te mahi o te whakamātautau antigen?
Ka whakaitihia te whakamātautau antigen i te wā matapihi ki te 16 rā