NYMC Faculty Publications

Detection of Antibodies to Anaplasma Phagocytophilum and Babesia Microti Using Linear Peptides

Authors

Author Type(s)

Faculty

DOI

10.1016/j.ttbdis.2022.101999

Journal Title

Ticks and Tick-Borne Diseases

First Page

101999

Document Type

Article

Publication Date

9-1-2022

Department

Medicine

Keywords

Anaplasmosis, Babesiosis, Diagnosis, Microarray, Serology

Disciplines

Medicine and Health Sciences

Abstract

Anaplasma phagocytophilum and Babesia microti are emerging tick-borne pathogens in the United States. Although active infection is typically diagnosed by direct diagnostic tests, such as blood smear or polymerase chain reaction assay, serologic assays can be helpful to identify past infections, and the use of acute plus convalescent testing can potentially identify recent infections. We employed a peptide array to select sets of linear peptides for serologic diagnosis of infections with A. phagocytophilum and B. microti. Three optimal peptides were selected for each agent based on their performance with clinical specimens. All three A. phagocytophilum peptides were located within the conserved fragments of the MSP2 antigen. Two B. microti peptides were located in the N terminus of the SA-1 antigen; the third was in the BMN 1-17 antigen. We found that these peptides can be a useful tool for detection of antibody reactivity to both of these pathogens.

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