Diagnosis of Staphylococcus aureus Infection in Bovine Mastitis using its Affinity Purified Fraction
Ehab A. Fouad1*, Khaled A. Abd El-Razik2 , Eman H. Abdel-Rahman3
1Microbiology and Immunology Department, National Research Centre, Giza, Egypt; 2Animal Reproduction Department, National Research Centre, Giza, Egypt; 3Parasitology and Animal Diseases Department, National Research Centre, Giza, Egypt
*Correspondence | Ehab Fouad, Microbiology and Immunology Department, National Research Centre, Giza, Egypt; Email:
[email protected]
Figure 1:
SDS PAGE profile of S. aureus purified fraction showed 2 bands (2 peaks).
Figure 2:
SDS PAGE profile of S. aureus Crude Antigen show 10 bands (10 peaks).
Figure 3:
Mean OD values of cows’ positive sera against the crude antigen of S. aureus.
Figure 4:
Mean OD values of cows’ positive sera against the purified fraction of S. aureus.
Figure 5:
Potency of the purified fraction of S. aureus to antibodies of positive cows’ milk samples.
Figure 6:
Significant validity of the stored purified fraction of S. aureus for one year at -20oC.
Figure 7:
Validity evaluation of the stored purified (Series 2) S. aureus fraction for one year at -20oC compared with freshly purified fraction (Series 1).
Figure 8:
Specificity evaluation of S. aureus purified fraction in comparison with different antigens in diagnosis of mastitis.