Related how?

Biota (Life)
Virus (Viruses)
Duplodnaviria
Heunggongvirae
Peploviricota
Herviviricetes
Herpesvirales
Herpesviridae (Herpes-viruses)
Alphaherpesvirinae (Alfaherpesvirinae)
Mardivirus

Marek's disease virus (707619)