Objectives To predict B cell epitopes of the IsdA protein of the Newman strain of Staphylococcus aureus and verify the immunoreactivity of the predicted epitopes. Methods Programs from the NCBI were searched for the sequence of the IsdA protein of the Newman strain of S.aureus.The secondary structure of the IsdA protein was determined with the software SOPMA.B cell epitopes and Th cell epitopes were predicted using online tools of the IEDB.The location of 3amino acids(valine,leucine,and cysteine)was analyze...