HBV reactivation occurred in HCV/HBV-coinfected persons during DAAs-based treatment.
It occurred with various class of DAAs and in HCV genotype 1 or 4-infected patients.
It occurred independently of the type of HBV infection: chronic, occult or resolved.
HBV replication increased early during the interferon-free anti-HCV treatment.
Close monitoring of HBV-coinfection may be warranted during any anti-HCV therapy.