GSK (GSK, Financial) announced that its respiratory syncytial virus (RSV) vaccine has shown protective benefits for three quarters following vaccination. The cumulative efficacy of the vaccine, adjusted for seasonal factors, stands at 62.9% for the elderly. This data is crucial for advisory panels, doctors, and patients when deciding which RSV vaccine to choose, as GSK faces strong competition from Pfizer (PFE) and Moderna (MRNA). The vaccine is approved for all adults aged 60 and above in the US and EU, as ...