
Current Oka strain varicella vaccines are generally safe but may cause latent neuronal infections leading to herpes zoster in some vaccinees. A novel v7D candidate vaccine has been developed to prevent varicella and reduce these risks. Methods: This randomized, double-blind, controlled, phase 2b clinical...

We report a case of fulminant invasive meningococcal disease caused by Neisseria meningitidis serogroup Y in a young, immunocompromised adult with myasthenia gravis receiving long-term immunosuppressive therapy including ravulizumab, despite prior meningococcal vaccination. Serogroup Y is increasingly...