There are multiple definitions:

1. volume of interest(English)

   • MRI, ROI, SR
   • Medical imaging, Skeleton and bone (formation)
   • https://doi.org…umed.117.194373
   • https://doi.org…gen.2017.03.002

2. variant of interest(English)

   • evidence is available on genomic properties, epidemiological evidence or in-vitro evidence that could imply a significant impact on transmissibility, severity and/or immunity, realistically having an impact on the epidemiological situation
   • COVID-19, VOC, WHO
   • Virology, Epidemiology
   • https://www.ecd…n in the EU/EEA