Once the virus is inside the host cell , the capsid dissolves .
The RNA gets replicated , and translated into viral proteins by the cell 's ribosomes using a cap - independent mechanism driven by the internal ribosome entry site element .
Once the virus is inside the host cell , the capsid dissolves , and the RNA gets replicated , and translated into viral proteins by the cell 's ribosomes using a cap - independent mechanism driven by the internal ribosome entry site element .