The first mRNA-based HIV vaccine is about to start human trials

The same system Moderna used for its COVID vaccine may also be able to help prevent HIV. Two of Moderna’s mRNA-based HIV vaccines could start human trials this week, according to a new posting in the National Institutes of Health’s clinical trial registry. The Phase I study would test the vaccines’ safety, as well as collect basic data on whether they’re inducing any kind of immunity, but would still need to go through Phases II and III to see how effective they might be.