Kutsekereza (kapena kutsekereza) mu microbiology ndi mawu otanthauza njira iliyonse yomwe imachotsa (kuchotsa) kapena kupha mitundu yonse yamoyo wa tizilombo tating'onoting'ono, kuphatikiza zinthu zopatsirana (monga mafangasi, mabakiteriya, ma virus, mitundu ya spore, ndi zina zambiri) zomwe zimapezeka pamwamba, zomwe zili mumadzimadzi, mu mankhwala, kapena muzinthu monga biological culture media. Kutseketsa kungathe kutheka pogwiritsa ntchito kusakaniza koyenera kwa kutentha, mankhwala, cheza, kuthamanga kwambiri, ndi kusefera.

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Nthawi zambiri, zida zopangira maopaleshoni ndi mankhwala omwe amalowa m'mbali yomwe ili kale m'thupi (monga m'magazi, kapena kulowa pakhungu) ayenera kutsekeka mpaka kutsimikizira kubereka kwakukulu, kapena SAL. Zitsanzo za zida zoterezi ndi monga scalpels, hypodermic singano ndi kupanga pacemakers. Izi ndizofunikiranso popanga mankhwala a parenteral.

Kutsekereza ngati tanthauzo kumathetsa moyo wonse; pamene ukhondo ndi mankhwala ophera tizilombo amatha mwa kusankha komanso pang'ono. Kuyeretsa komanso kupha tizilombo toyambitsa matenda kumachepetsa kuchuluka kwa tizilombo toyambitsa matenda tomwe timakonda kukhala "ovomerezeka" - milingo yomwe thupi lathanzi, losasunthika, limatha kuthana nazo. Chitsanzo cha kalasi iyi ndi Pasteurization.

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Mwa njira zotsekera tili nazo:
- Kutentha kotsekera
- Kutseketsa kwa mankhwala
- Kutsekereza kwa radiation
- Sefa wosabala