%0 Journal Article %T High-Throughput Screening for the Prevalence of Neutralizing Antibodies against Human Adenovirus Serotype 5. %A Wettengel JM %A Naka H %A Dissen GA %A Torgerson J %A Pounder M %A Mueller SF %A Mueller E %A Hagen P %A Brandt M %A Protzer U %A Burwitz BJ %J Vaccines (Basel) %V 12 %N 2 %D 2024 Feb 1 %M 38400138 %F 4.961 %R 10.3390/vaccines12020155 %X Adenoviral vectors based on the human adenovirus species C serotype 5 (HAdV-C5) are commonly used for vector-based gene therapies and vaccines. In the preclinical stages of development, their safety and efficacy are often validated in suitable animal models. However, pre-existing neutralizing antibodies may severely influence study outcomes. Here, we generated a new HAdV-C5-based reporter vector and established a high-throughput screening assay for the multivalent detection of HAdV-C5-neutralizing antibodies in serum. We screened the sera of rhesus macaques at different primate centers, and of rabbits, horses, cats, and dogs, showing that HAdV-C5-neutralizing antibodies can be found in all species, albeit at different frequencies. Our results emphasize the need to prescreen model animals in HAdV-C5-based studies.