Review/Oorsig Volume 22, Issue 04 - Page 27

Volume 22 • Issue 04 • 2018 flora is necessary for a well-functioning intestine. RL - 29 June 2018 E. coli virulence factors. There are hundreds of strains of E. coli, and some are only environmental opportunists and others are true pathogens. Distinguishing between environmental and pathogenic strains has not been possible for years, as serotyping is no longer being carried out at Onderstepoort. Serotyping to establish pathogenicity had limitations B2&V6PWFFFVB&W6V&62fVBFB5"FW7Fpf"f'VV6Rf7F'2vfW27WW&"&W7VG2FW6PFW7G2fR&VVf&R6WFg&6f"R6ƒ7G&26FVBg&f"6RV'2'W@Bf"6FW2VF&V6VFǒR6ƒf'VV6Rf7F'26FRf"GF6V@BF&GV7FFRGF6VBf7F'0"FW62rFvV2R6ƒFGF6FFRFW7Fv"&FFW"WFVƗV6FBFW&RBv6VBWBvFFRvW7F W&RR6ƒF2&R&W76&Rf"FR6v0BW626VV7V62VFW&F2V'&vRVFVBV6W&FFW&R2V7W&R`F77VRBF&vWB6V7V6f6Gr`FRf'VV6Rf7F'27V6W2vRB6FR7V6f2vRrfRRR6ƒf'VV6Rf7F"V0f&RV6VFW7G2f"B"Rf7F'2( 'V֖BV2%f"6GFR6VW@vG2FRf'7BV2&R7VF&Rf 6fW2'2BG2VFW"vVV`vRB&FV2&RGf6VBf"FW 2FRGvV26VB&RW6VBf Fv6rBFffW&VFFr&WGvVVVFW&FvV2R6ƒv6FW2BVV@F&F2G&VFVBBVFW&FvV2R6ƒv62&W7BG&VFVBvF&&FPF&F2f'VV6Rf7F"&6VBf66W2'Bg&66W&wV&BB&Ff06&&RBWBf&Rf"'V֖G2आvWfW"6RFRffVFrf'VV6Pf7F'2&Rv&&FRWFvVW0f66W26&R&W&VBखbf'VV6Rf7F'2&RFWFV7FVBP&R6W'FFBFRR6ƒ6FR2ǐ'GV7BF2vVB&R'F7V&ǐVgVf"fWFW&&2&GFƖrvFFP7W'&VB7'F7&FVR6ƒWF'&V'V֖G2WFvVW2f66W2FBvW&P&W&VBvW&RBVffV7FfRBǒFgVbWFvVW2f66W2&WfVFVBgW'FW F'&VगB2b6W'6R7'V6FBFR6'&V7B6W0bR6ƒ&R6VV7FVBf"FRf'VV6Rf7F FW7G2BB6F֖G2'WW&V6V@֖7&&v7BF&WfVBg'VFW72WVFGW&PFRFW7BDt40bVR# 4B'BBFB6FW7Bf"&F6&FvV2R6ƒcRGF6VBf7F"@7'F7&FVFW6RFW7G2&R67W&FR@vFVǒW6VBFRURBW7G&ƖW7G&ƖFWW6RF2FW7BBbVvFfR6VBBfbf 6V7VGW&RvR6f6FVBf'W2"BTET4FW7V6ƗR&Ff'W2FVFf6F'&W7V7FfPb7V6W2ffVBFR7W'&VBf&Rf66W06F2BR7G&2'WBvR&RB7W&RbFP7G&ffV7FrW"6fW2&RF2f66RF0"6FVFgFR7V6f27G&2f"W2B67BथrBb# vF&Vv&G2F7V6V26F7BFR&&F'RW6Rf"wVF6RvVfW7FvFrW&@F'&V&&VvVBGf6RRF7V&֗@7V6V2g&6Ɩ666W2FR7WFR6P&Vf&RG&VFVB2FVBWB'FW'20vV2fV6W2g&SVFFfGV26PvRw&Wf"W֖FॖR6fB7'F7&FVVFFRVvw2f'W6W2666F77G2WF2VF@F6V6VB2B6&rFRfFw0767BvFvWGFrFFR7vW"W7V6ǐbR6BFVFgFR666F77G2B VFFRVvw2DBb# 6VB6&R6VBW6V"&FW"FfFFVFW"vVVbvSvB2G07V&FW&CtBb# &RFVBBFVBW&B6fW2&vPg&2FbBBF2F2VFW&B'&Ff&B6֗F7F66f"BFBF2@FRW7&WFb77G2dU%6’2&VVFW67&&VB26'B2"F2bvRf&vBF66B6VR6V"&V6W6RB0fW'66V"F6F֖FVBBFP77B6&R6gW6VBvFFW"Fw0#p