What happens when parents disagree about child vaccination?

Despite recent concerns about MMR vaccination, there now seems to be widespread agreement that the routine childhood vaccinations are very worthwhile.  The onus is on the parent who refuses a vaccination for their child to take court action to prevent it.  A recent English appeal judgement supported a local authority which wanted to vaccinate a child against the  wishes of the parents.  Anyone arguing in favour of child vaccinations should be able to use this to reinforce their case if the issue goes to court.  A more recent English judgement concluded that refusal of Covid vaccination by one parent could also be overcome.