Attachement of the virus to host receptors mediates internalization into the host cell by clathrin-mediated endocytosis.
RNA genome is released into the cytoplasm.
The positive-sense genomic ssRNA is translated into a processed ORF1 polyprotein to yield the mature non-structural proteins involved in RNA transcription.
Replication takes place in cytoplasmic viral factories. A dsRNA genome is synthesized from the genomic ssRNA(+).
The dsRNA genome is transcribed/replicated thereby providing viral mRNAs/new ssRNA(+) genomes.
Expression of two other messenger RNAs, a 3.7 kb subgenomic one and a 2.0 kb coterminal one.
Virus assembly and release.