DLS	Dynamic light scattering
DP	Drug product
DS	Drug substance
HCMV	Human cytomegalovirus
MFI	Micro-flow imaging
NIEPs	Non-infectious enveloped particles
NTA	Nanoparticle tracking analysis
VLPs	Virus-like particles
SDS-PAGE	Sodium dodecyl sulfate–polyacrylamide gel electrophoresis
SEC	Size-exclusion chromatography
TEM	Transmission electron microscopy