Why do viruses need living hosts, such as bacteria or eukaryote cells?

the cytokine-activated janus kinase (jak)-signal transducer and activator of transcription (stat) pathway has an important role in the control of immune responses. dysregulation of jak-stat signaling is associated with various immune disorders.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;