Do remember saying these things, Curlew?
Vitamin A does not treat measles.
Giving Vitamin A to a child with measles who doesn't have a deficiency has no effect (that's a paraphrase)
I gave you these quotes and references AGES ago. How can you say no one knows anything?
"Measles virus grows in the cells that line the back of the throat and lungs. Vitamin A is essential for the maintenance of this lining and others throughout the body. Vitamin A deficiency is a recognised risk factor for severe measles and since 1987 the WHO and UNICEF have recommended vitamin A treatment of children with measles; two doses of 200 000 IU for children over one year and 100 000 IU for infants, was found to reduce measles mortality by 62% (14) in poorer countries. Measles can also lower serum concentrations of vitamin A in well nourished children to less than those observed in non-infected malnourished children. When a child with marginal vitamin A stores gets measles, available vitamin A is quickly used up ? reducing the ability to resist secondary infections or their consequences, or both. (15)
These are the references
14 Sudfeld CR, Navar AM, Halsey NA.Effectiveness of measles vaccination and vitamin A treatment.
Int J Epidemiol. 2010 Apr;39 Suppl 1:i48-55. Review. www.ncbi.nlm.nih.gov/pmc/articles/PMC2845860/pdf/dyq021.pdf
15 Barclay AJ, Foster A, Sommer A. Vitamin A supplements and mortality related to measles: a randomised clinical trial. Br Med J (Clin Res Ed). 1987 Jan 31;294(6567):294-6. www.ncbi.nlm.nih.gov/pmc/articles/PMC1245303/pdf/bmjcred00005-0036.pdf
This is just a tiny fraction of the MASSES of evidence you have been shown. And you have gone on and on about how helpful it would be to know "starting positions", and you were among the first to start talking about the "anti-vaccination brigade". So you were presented with evidence, which you ignored, then you demanded to know starting positions, after assuming anti-vax this and that,, and now you've been told "starting positions" you're ignoring that and now you have gone back to pretending there's no evidence.