Abstract
Keeping informed given rapid trend in data and resources about covid-19 is a new challenge. Different user groups (researchers/doctors, practitioners, public) vary in linguistic expression and vocabulary so a new retrieval framework might likewise vary to improve retrieval, expose unanticipated concepts, and establish a sustainable research stream. In this project a document collection about covid-19 was created, parsed according to ISO12620's definition of linguistic register, and retrieval sets compared. Results suggest trends from other fields parallel register-oriented criteria; project exposes unexpected concepts across groups, uses of visualization, and warrants ling-register as a sustainable IR research stream.