Thanks Avocet and Sally for your advice
Thought it was probably Malerone but a friend that is also going on this trip was advised that Chloroquine is sufficient. The NATHNAC site advises that it depends on where in the Amazon Basin you are going in relation to Brazil or Bolivia border. Seems best for me to take Malerone to be on the safe side!
I had also not thought about Rabies vaccination being a requirement but again it seems that it is being recommended to my friend.
The doctors surgery that I attend is a very small one and previous travel advice does seem to be a bit hit and miss which was why I thought to ask here of previous experience. I think, to be sure, I will aim to find another travel clinic in my area where I can get the most up to date info.
Thanks for your good wishes in respect of my holiday and I hope that you both have a great time wherever you are holidaying also.
Thanks again
Take care
Janet