Cov txheej txheem:

Koj tuaj yeem qhia qhov sib txawv ntawm staphylococcus thiab streptococcus li cas?
Koj tuaj yeem qhia qhov sib txawv ntawm staphylococcus thiab streptococcus li cas?

Video: Koj tuaj yeem qhia qhov sib txawv ntawm staphylococcus thiab streptococcus li cas?

Video: Koj tuaj yeem qhia qhov sib txawv ntawm staphylococcus thiab streptococcus li cas?
Video: ua tsaug koj qhov nyiaj xas kuv rov qab/3/13/2022 2024, Tej zaum
Anonim

Staphylococci yog Gram-positive cocci uas loj hlob hauv clumps, yog catalase kuaj tau zoo thiab coagulase kuaj tau zoo ( Staph . Kab mob Streptococci yog Gram-positive cocci uas loj hlob ua khub lossis saw hlau. Lawv tau yooj yim txawv ntawm staphylococci cov tsos mob los ntawm lawv cov Gram-stain tsos thiab los ntawm qhov tsis zoo catalase test.

Ua raws li qhov no hauv kev xav, dab tsi yog qhov txaus ntshai staphylococcus lossis streptococcus?

Streptococcal kis tus kab mob txawm txaus ntshai dua tshaj qhov staphylococcal kab mob daim ntawv. Kev kho mob muaj cov tshuaj tua kab mob thiab kev txhawb nqa kev kho mob, nrog rau kev phais mob hnyav ntawm cov nqaij mos foci ntawm tus kab mob thaum tsim nyog.

Ib qho ntxiv, staph tuaj yeem ua rau mob caj pas? Staphylococcus (cov staph ) yog cov kab mob feem ntau pom muaj nyob rau ntawm ntau qhov tawv nqaij, suav nrog hauv lub qhov ntswg thiab sab hauv lub qhov ncauj thiab caj pas . Cov kab mob kis kab mob no feem ntau yog a kis kab mob (pab pawg A Streptococcus) ntau dua li a tus kab mob staph.

Tsis tas li ntawd, qhov kev ntsuam xyuas tseem ceeb uas cais Staphylococcus aureus los ntawm lwm cov staphylococci yog dab tsi?

aureus yog catalase-zoo (txhais tau tias nws tuaj yeem tsim cov enzyme catalase) thiab tuaj yeem hloov hydrogen peroxide (H.2O2) rau dej thiab oxygen, uas ua rau catalase xeem pab kom paub qhov txawv staphylococci los ntawm enterococci thiab streptococci.

Dab tsi yog cov yam ntxwv tseem ceeb ntawm txhua tus staphylococcus?

Kev txheeb xyuas ntawm Staphylococci hauv Clinical Laboratory

  • Qauv. Staphylococci yog Gram-positive cocci txog 0.5-1.0 μm txoj kab uas hla.
  • Catalase Test. Kev ntsuas catalase yog qhov tseem ceeb hauv kev sib txawv streptococci (catalase-negative) staphylococci uas yog catalase zoo.
  • Kev rho tawm thiab Qhia paub.

Pom zoo: