My DD has been offered the COVID vaccination and flu nasal spray at school on the same day. I have no problem with her having either, but have found no study that looks at the efficacy of these two vaccines when adminstered together (there is a bit of evidence on the flu vaccine, but can't find anything on the nasal spray) or whether side effects are likely to be greater. Does anyone know anything about this, and is ti common to give both together? Thanks.