Jan 27 (Reuters) - The European Union's drug regulator on Thursday conditionally approved the use of Pfizer Inc's antiviral COVID-19 pill for treating adults at risk of severe illness, as the region scrambles to boost its arsenal to fight the highly infectious Omicron variant.
(Reporting by Mrinalika Roy and Manas Mishra in Bengaluru; Editing by Shounak Dasgupta)
