An investigation of excipients for a stable Orf viral vector formulation.

"Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper."

"The authors greatly thank Sabri Orbay for his diligent support characterizing the influence of salts on the ORFV infectivity, and Catharine Meckel-Oschmann for her thorough proofreading of the manuscript. Furthermore, we want to thank Paul Dalby, University College London, for his scientific support in this project. This work was financially supported by the Heinrich Böll Foundation with a doctoral scholarship to F Eilts and the University of Applied Sciences Mittelhessen, Giessen, Germany. Additionally, an EXIST-Forschungstransfer grant (03EFKBW171) of the German Federal Ministry for Economic Affairs and Energy was granted and the project was co-funded by the European Regional Development Fund as part of the Union's response to the COVID-19 pandemic (IGJ-ERDF-Program Hesse - React EU 20008790). The presented manuscript is part of F Eilts’ dissertation at the Graduate centre for Engineering Sciences under the aegis of the Justus-Liebig University Giessen, Germany, in cooperation with the University of Applied Sciences Mittelhessen, Giessen, Germany. Friederike Eilts: Conceptualization, Validation, Investigation, Visualization, Writing – original draft. Yasmina M.J. Harsy: Conceptualization, Investigation, Visualization. Keven Lothert: Conceptualization, Investigation. Felix Pagallies: Conceptualization, Investigation, Resources. Ralf Amann: Writing – review & editing, Funding acquisition, Project administration. Michael W. Wolff: Writing – review & editing, Funding acquisition, Supervision, Project administration."