Division 10 This list also gives a separate indication in cases where the biological agents are likely to cause allergic or toxic reactions, where an effective vaccine is available, or where it is advisable to keep a list of exposed workers for more than 10 years.F1

These indications are shown by the following letters:

1. A::

   Possible allergic effects

2. D::

   List of workers exposed to this biological agent to be kept for more than 10 years after the end of last known exposure

3. T::

   Toxin production

4. V::

   Effective vaccine available and registered within the EU

The application of preventive vaccination should take account of the code of practice given in Annex VII.