The researchers developed a molecule which works to stop toxic proteins from building up in the brain.
With a third of adults saying they likely won’t get the vaccine, the US has a herd immunity math problem.
COVID-19 vaccine testing on children is just getting started, and only in adolescents.
Further tests are needed but a trial showed that, when compared against placebo treatment, those given the drug had a 79% lower risk of developing severe disease.
The US president has reignited controversy over the use of malaria drugs to guard against COVID-19. But there is little reliable evidence so far that this tactic is safe or effective.
A drug created to target this gene was found to be effective in treating autoimmune conditions like lupus and psoriasis.
Placebos come in different shapes, colours that can all have different effects.