Patent ID: 7390626

Claim:
A method for determining the presence or possibility of a Borrelia, Babesia , and Ehrlichia infection in a patient, comprising the steps of: a) determining a level of antibodies against peptides of infective agents from each of Borrelia, Babesia , and Ehrlichia , wherein said Borrelia peptide has the sequence shown in SEQ ID NO: 7, said Babesia peptide has the sequence shown in SEQ ID NO: 12, and said Ehrlichia peptide has the sequence shown in SEQ ID NO: 15 in a sample from said patient; b) comparing the level of antibodies determined in step a) with levels of said antibodies from at least one healthy control individual, wherein (i) control levels of antibodies against Borrelia, Babesia , and Ehrlichia indicate that said patient does not have the presence or possibility of Borrelia, Babesia , and Ehrlichia infection; (ii) levels of antibodies greater than two standard deviations above control levels against said Borrelia peptide indicate a presence or possibility of an infection with Borrelia; (iii) greater than two standard deviations above control levels of antibodies against peptides of Babesia indicate a presence or possibility of an infection with Babesia ; and (iv) greater than two standard deviations above control levels of antibodies against peptides of Ehrlichia , indicate a presence or possibility of an infection with Ehrlichia.