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First Evidence of Antibodies Against Lloviu Virus in Schreiber’s Bent-Winged Insectivorous Bats Demonstrate a Wide Circulation of the Virus in Spain

AuthorsRamírez de Arellano, Eva; Sanchez-Lockhart, Mariano; Perteguer, Maria J.; Bartlett, Maggie; Ortiz, Marta; Campioli, Pamela; Hernández, Ana; Gonzalez, Jeanette; Garcia, Karla; Ramos, Manolo; Jiménez-Clavero, Miguel A. ; Tenorio, Antonio; Sánchez-Seco, María Paz ; González, Félix; Echevarría, Juan Emilio; Palacios, Gustavo; Negredo, Anabel
KeywordsLloviu virus
Issue Date19-Apr-2019
PublisherMultidisciplinary Digital Publishing Institute
CitationViruses 11(4): 360 (2019)
AbstractAlthough Lloviu virus (LLOV) was discovered in the carcasses of insectivorous Schreiber’s Bent-winged bats in the caves of Northern Spain in 2002, its infectivity and pathogenicity remain unclear. We examined the seroprevalence of LLOV in potentially exposed Schreiber’s Bent-winged bats (<i>n</i> = 60), common serotine bats (<i>n</i> = 10) as controls, and humans (<i>n</i> = 22) using an immunoblot assay. We found antibodies against LLOV GP<sub>2</sub> in all of Schreiber’s Bent-winged bats serum pools, but not in any of the common serotine bats and human pools tested. To confirm this seroreactivity, 52 serums were individually tested using Domain Programmable Arrays (DPA), a phage display based-system serology technique for profiling filovirus epitopes. A serological signature against different LLOV proteins was obtained in 19/52 samples tested (36.5%). The immunodominant response was in the majority specific to LLOV-unique epitopes, confirming that the serological response detected was to LLOV. To our knowledge, this is the first serological evidence of LLOV exposure in live captured Schreiber’s Bent-winged bats, dissociating LLOV circulation as the cause of the previously reported die-offs.
Publisher version (URL)http://dx.doi.org/10.3390/v11040360
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