Le kiti isetyenziselwa ukubona ngokusemgangathweni iqela B streptococcus nucleic acid DNA in vitro rectal swabs, i-vaginal swabs okanye i-rectal / i-vaginal exutywe i-swabs yabasetyhini abakhulelweyo abanomngcipheko ophezulu malunga ne-35 ~ 37 yeeveki zokukhulelwa, kunye nezinye iiveki zokukhulelwa ezineempawu zekliniki ezifana njengokugqabhuka kwangaphambi kwexesha kweembrane, ukoyikiswa kwangaphambi kwexesha lomsebenzi, njl.