Los ntawm npog thaj tsam ntawm kev phais mob kom tiv thaiv microbial ntxeem tau ntawm cov teb tsis muaj zog, cov teeb meem ntxiv tau zam.
Tom qab cov tawv nqaij sterilized tau npaj, cov phuam phais tau muab tso rau ntawm qhov chaw phais kom tswj tau cov chaw tsis muaj zog los tswj cov chaw tsis muaj zog. Ib qho ntawm lawv cov yam tseem ceeb tshaj plaws yog kev sib khi ntawm cov kua dej. Lwm yam yuav tsum muaj rau kev phais pov tseg kev tsis muaj cai ntawm cov microbial (qhuav thiab ntub) nkag mus, nqus tau cov kua nkag, thiab lub zog tensile.
Txij li thaum microbes ntawm tus neeg mob daim tawv nqaij yog qhov kev paug loj, kev siv cov khoom siv overharan ua rau txo tus kab mob thiab txhim kho cov txiaj ntsig tus neeg mob. Kev phais cov ntaub ntawv tsim cov cev lub cev kom tiv thaiv kom tiv thaiv kev hloov pauv ntawm cov kab mob me ntawm cov neeg mob thiab ib puag ncig ib puag ncig mus rau lub qhov txhab.
Kev phais cov ntawv txheeb (ua los ntawm tsis - Cov ntaub ntawv uas muaj kuab tshuaj kom tswj tau cov tshuaj tua kab mob zoo. Qhov no yog vim hais tias lub cev kua thiab yaug kua dej tuaj rau hauv kev sib cuag thaum phais mob, thiab thaum muaj kev pheej hmoo ntawm pathogen ntawm cov pathogen kev sib kis nce.