antiviral drug research

This is some potentially exciting news coming from China: a Covid drug called Azvudine (originally an HIV drug) that appears to be quite effective in reducing symptoms from the infection. However, there are two problems: 1) The information comes from Chinese newspapers, not journals; 2) the science doesn't add up.
Antiviral drug development for COVID-19 took a back seat to vaccines during the brief time – when we thought that ending the pandemic was simply a matter of getting enough needles in enough arms. But the virus had other ideas: variants. Now it's looking like we may need a drug to complement the vaccines. Three are in development. Here's a look at Pfizer's PF-07321332. It should work, but don't hold me to that.