Hi
I haven't heard of Green immunisation, only heard of homeopathic as an alternative. It is not always the virus that is the problem but the additives that go into the injections. This can include substances such as aluminium, thimerisol (although they say this has been removed, it is still used in the manufacturing process in some immunisations) monkey kidney,and a host of other preservatives and nasty additives. My children had an alergic reaction to the additives and are now medically exempt from further immunisation. For us though, the damage has already been done. It's great that you are doing research.
Kind regards
Lisa B.