Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Nasarar kowane kwayar cuta ta dogara ne da ikonta na guje wa amsawar garkuwar jiki. Saboda haka, kwayoyin cuta sun samo hanyoyi da yawa waɗanda ke ba su damar samun nasarar kamuwa da mai masauki, yayin gujewa ganowa ko lalata ta tsarin garkuwar jiki. Kwayoyin cuta sau da yawa suna shawo kan shingen jiki ta hanyar ɓoye enzymes waɗanda ke narkar da shingen, alal misali, ta amfani da tsarin ɓoye nau'in II. A madadin haka, ta amfani da tsarin ɓoye nau'in III, za su iya saka bututu mai rami a cikin kwayar mai masauki, suna ba da hanyar kai tsaye ga sunadarai don motsawa daga kwayar cutar zuwa mai masaukin. Ana amfani da waɗannan sunadarai sau da yawa don kashe kariya ta mai masauki. Hanyar gujewa da yawancin pathogens ke amfani da ita don kauce wa tsarin rigakafin da aka haifa shine ɓoyewa a cikin ƙwayoyin halittar su (wanda ake kira intracellular pathogenesis). A nan, kwayar cuta tana ciyar da yawancin rayuwarta a cikin ƙwayoyin da ke karɓar bakuncin, inda aka kare shi daga hulɗa kai tsaye tare da ƙwayoyin rigakafi, ƙwayoyin rigakafi da kari. Wasu misalai na ƙwayoyin cuta na ƙwayoyin cuta sun haɗa da ƙwayoyin cuta, ƙwayoyin cuta masu guba na abinci Salmonella da eukaryotic parasites da ke haifar da zazzabin cizon sauro (Plasmodium falciparum) da leishmaniasis (Leishmania spp.). Sauran kwayoyin cuta, kamar Mycobacterium tarin fuka, suna rayuwa a cikin wani abin karewa wanda ke hana lysis ta hanyar kari. Ƙwayoyin cuta da yawa suna fitar da abubuwa da ke rage ko kuma ɓata tsarin garkuwar jiki. Wasu ƙwayoyin ƙwayoyin cuta suna yin fim don su kāre kansu daga ƙwayoyin cuta da kuma sunadarai na tsarin garkuwar jiki. Irin waɗannan biofilms suna nan a cikin cututtukan da yawa masu nasara, misali, cututtukan Pseudomonas aeruginosa na yau da kullun da Burkholderia cenocepacia na halayyar cystic fibrosis. Sauran ƙwayoyin cuta suna samar da sunadarai na farfajiyar da ke ɗaure da ƙwayoyin cuta, suna mai da su marasa tasiri; misalai sun haɗa da Streptococcus (sunadarai G), Staphylococcus aureus (sunadarai A), da Peptostreptococcus magnus (sunadarai L). Hanyoyin da ake amfani da su don guje wa tsarin rigakafin daidaitawa sun fi rikitarwa. Hanya mafi sauki ita ce sauya saurin abubuwan da ba su da mahimmanci (amino acid da / ko sugars) a farfajiyar kwayar cutar, yayin da...  Tambaya: Menene ake kāre kwayar cutar daga lokacin rayuwarta?
ƙwayoyin rigakafi, antibodies da kari