Setsi sena se sebelisetsoa ho lemoha ka mokhoa o nepahetseng sehlopha sa B streptococcus nucleic acid DNA in vitro rectal swabs, li-swabs tsa botšehali kapa li-swabs tse tsoakiloeng ka mokokotlong / botšehali ba bakhachane ba nang le kotsi e kholo ea libeke tse 35 ~ 37 tsa bokhachane, le libeke tse ling tsa bokhachane tse nang le matšoao a joalo. joalo ka ho phatloha pele ho nako ha li-membrane, kotsi ea ho beleha pele ho nako, joalo-joalo.