Using traditional antibiotics against a virus is not particularly likely to help. Traditional antivirals are in a number of studies currently. By my non-expert

Using traditional antibiotics against a virus is not particularly likely to help. Traditional antivirals are in a number of studies currently. By my non-expert estimate, remdesivir seems to be the most likely candidate. It's not approved for use in the US yet, but is well on the path: https://www.drugs.com/history/remdesivir.html https://www.drugs.com/history/remdesivir.html