#Covid-19#코로나#바이러스#SARS-CoV-2#핵산추출기#자동핵산추출장비#자동전처리장비#nucleic#acid#DNA#RNA#magneticbeads#virus#plant#animal#bloodbacteria#stool#Fungus#cfDNA#TB-DNA#Saliva#bioD#바이오디