A Composite Recombinant Salivary Proteins Biomarker for Phlebotomus argentipes Provides a Surveillance Tool Postelimination of Visceral Leishmaniasis in India

Iniguez, Eva, Saha, Samiran, Petrellis, Georgios, Menenses, Claudio, Herbert, Samantha, Gonzalez-Rangel, Yvonne, Rowland, Tobin, Aronson, Naomi E, Rose, Clair ORCID: https://orcid.org/0000-0001-7782-5359, Haines, Lee ORCID: https://orcid.org/0000-0001-8821-6479, Acosta-Serrano, Alvaro ORCID: https://orcid.org/0000-0002-2576-7959, Serafim, Tiago D, Oliveira, Fabiano, Srikantiah, Sridhar, Bern, Caryn, Valenzuela, Jesus G and Kamhawi, Shaden (2022) 'A Composite Recombinant Salivary Proteins Biomarker for Phlebotomus argentipes Provides a Surveillance Tool Postelimination of Visceral Leishmaniasis in India'. The Journal of Infectious Diseases, Vol 226, Issue 10, pp. 1842-1851.

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Abstract

Incidence of visceral leishmaniasis (VL) in the Indian subcontinent (ISC) has declined by more than 95% since initiation of the elimination program in 2005. As the ISC transitions to the postelimination surveillance phase, an accurate measurement of human-vector contact is needed to assure long-term success. To develop this tool, we identified PagSP02 and PagSP06 from saliva of Phlebotomus argentipes, the vector of Leishmania donovani in the ISC, as immunodominant proteins in humans. We also established the absence of cross-reactivity with Phlebotomus papatasi saliva, the only other human-biting sand fly in the ISC. Importantly, by combining recombinant rPagSP02 and rPagSP06 we achieved greater antibody recognition and specificity than single salivary proteins. The receiver operating characteristics curve for rPagSP02 + rPagSP06 predicts exposure to Ph. argentipes bites with 90% specificity and 87% sensitivity compared to negative control sera (P >.0001). Overall, rPagSP02 + rPagSP06 provides an effective surveillance tool for monitoring vector control efforts after VL elimination.

Item Type:	Article
Subjects:	WC Communicable Diseases > Tropical and Parasitic Diseases > WC 715 Visceral leishmaniasis
Faculty: Department:	Biological Sciences > Vector Biology Department
Digital Object Identifer (DOI):	https://doi.org/10.1093/infdis/jiac354
SWORD Depositor:	JISC Pubrouter
Depositing User:	JISC Pubrouter
Date Deposited:	20 Mar 2023 15:00
Last Modified:	20 Nov 2023 15:10
URI:	https://archive.lstmed.ac.uk/id/eprint/22056

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