ROI is approved upon the following comment being actioned upon:

PGGRC approves this paper moving forward - Saliva is misspelt on page three as salvia.
Overall does throw up some challenging issues though, as we are expecting, are we not, that the Vaccine is likely to be a complex set of antigens so wil this lead to weakened avidity unless a multi vacccination ( greater than 2 injections) approach is taken?
