Vaccines that protect against SARS-CoV-2, the virus that causes COVID-19, stimulate our immune system to produce antibodies that can interfere with virus replication. Antibodies specifically bind to viral proteins, interfering with their normal function. The most widely used vaccines agains SARS-CoV-2 produce antibodies that bind to a protein on the surface of the viral particle called the Spike protein. Which step of virus replication would be directly blocked by these antibodies? Choose the one best answer. Responses attachment to the cell surface attachment to the cell surface replication of the viral genome replication of the viral genome assembly of infectious viral particles assembly of infectious viral particles fusion of viral envelope with the host cell fusion of viral envelope with the host cell