Attachement to host receptors probably mediates endocytosis of the virus into the host cell.
Uncoating, and release of the viral genomic RNA into the cytoplasm.
Viral RNA is translated into two processed polyproteins to produce replication proteins.
Replication occurs in viral factories made of membrane vesicles derived from the ER. A dsRNA genome is synthesized from the genomic ssRNA(+).
The dsRNA genome is transcribed/replicated thereby providing viral mRNAs/new ssRNA(+) genomes.
Subgenomic RNA translation gives rise to the capsid protein precursor.
Assembly of new virus particles.
Non-lytic virus release and maturation of the capsid by proteolytic cleavages.