Arnica UK hope this helps you to be more informed and also helps with any communication with your primary school. Arnica UK have found that this year schools have authorised more absence than last year which is good but it needs to be all schools. Arnica UK feel that any cautious parent wishing to remove their child from school on the day of the 'Fluenz' and 3 days afterwards should be respected and this absence authorised.
Arnica UK will be emailing every school in England and Wales about this and trusts that you will be sharing your concerns too.
http://www.arnica.org.uk