Jason Kaelber trained in molecular and evolutionary virology under Colin Parrish, Marco Vignuzzi, and Welkin Johnson before earning his PhD in Molecular Virology & Microbiology under cryo-EM expert Wah Chiu. He is now a principal investigator at Rutgers University where his research interests include: in situ and atomic characterization of ssDNA viruses by 3D electron microscopy, processes of virus structure evolution, and the origins of viruses. He also directs the Rutgers CryoEM & Nanoimaging Facility.