Kunyange zvazvo zvisingazivikanwi sechikonzero chehumorrhagic colitis (chirwere chinopa ropa) kusvika muna 1982, E. coli O157: H7 ikozvino inozivikanwa sechikonzero chinowanzo chinetso ichi. Kubuda kwechirwere ichi chinokonzerwa nemabhakitiriya aya ave achibatanidzwa nehamburger yakasvibiswa, juisi yeapuro, uye michina isina kukwana yemakisi. Kunyange zvazvo zvirwere zvizhinji zvisingaiti zvakanyanya uye zvinogadzirisa pachavo, zvinogona kunge zvinouraya zvinogona kuitika zvinotevera hutachiona na E. coli O157: H7.
Species Name: Enterohemorrhagic Escherichia coli , kana "EHEC"
Rudzi rwe Microbe: Gram-negative mabhakitiriya
Iyo Inopararira
Kazhinji zvokudya zvinowanikwa.
Zvokudya zvinosanganiswa neE coli zvakabatanidza nyama yakasvibiswa kana isina kudya (eg, pasi pasi), kudya nyama, mazai asina zvibereko uye zvibereko zvemiti, uye zvibereko. Zvimwe zvitubu zvehutachiona zvakabatanidza kuisa zvidhori, gungwa mvura, uye maoko akasvibiswa.
Ndiani ari pangozi?
Vanhu vose vanotapukirwa nechirwere ichi, asi vaduku zvikuru uye vakwegura zvikuru vari pangozi yakawanda yezvirwere zvakanyanya.
Zviratidzo
Zviratidzo zvinogona kusiyana, asi kazhinji zvinosanganisira chirwere (kazhinji chinopa ropa), kurutsa, uye chironda chakasimba chemimba. Kazhinji, fivha haisipo kana kunyoroka. Kune vanhu vakawanda, utachiona hunogadzirisa nehuwandu hwemazuva masere.
Maitiro Anokonzera Matwere
E. coli inobata kumatumbo emukara uye inobereka tsvina (Shiga toxin) inokonzera kuvhiringidza uye kuchengetedzwa kwemukati wemvura. Iyo inopinha inokuvadzawo marara emucheka wemukumbo mukuru uye itsvo.
Matambudziko
Inenge 5-10% yevanhu vane E. coli O157: H7 zvirwere zvinokonzera kukuvadza kunokonzerwa nehemolytic-uremic syndrome , kana HUS, iyo inoratidzirwa nehuputi kana kukanganisa kwechirwere uye hemolytic anemia (kurasikirwa kwemasero matsvuku eropa). Izvi zvinowanzowanzo muvana uye zvinogona kuva zvakakomba, zvichiita kuti kuve nekusingaperi kwepfungwa kana kufa.
Kuziva
Kuongorora mabhizinesi ezvigaro zvinoshandiswa nemaitiro emabhakitiriya.
Prognosis
Zvizhinji zvirwere zvinosarudza ivo pachavo mukati me5 kusvika kune mazuva manomwe vasina kurapwa, asi zvimwe zvirwere zvinogona kuva zvakanyanya kana kutyisidzira upenyu.
Kurapa
Kurapa kunosanganisira kuchengetedza kunotsigira, kunyanya, kudzivisa kupererwa nemvura kunopa mvura. Mishonga inorwisa mabhakitiriya uye anti-diarrheal mishonga (yakadai seImodium) haina kunyatsokurudzirwa kurapa E. coli O157: H7 zvirwere. Kushandiswa kwemishonga iyi kwave kuchibatanidzwa nehutano hwakanyanya; zvinoita sokuti, vanogona kuwedzisa nguva yehurwere, vanogona kuve nemigumisiro yeShiga toxin, uye kuwedzera ngozi yehemolytic-uremic syndrome.
Kudzivirira
Shandisa uhu hwakanaka, kushamba maoko nguva dzose, nekuchengetedzwa kwekicheni .
Sources:
Escherichia coli . CDC Division of Foodborne, Bhakteria uye Mycotic Diseases.
Escherichia coli O157: H7. US FDA Book Bug Bad. Foodborne Pathogenic Microorganisms uye Natural Toxins Handbook.
Tarr PI, Gordon CA, Chandler WL. Shiga-toxin-inobereka Escherichia coli uye haemolytic uraemic syndrome. Lancet 2005; 365: 1073.