So far, there is only one study I am aware of which was actually a claim made by Magden David Adom, that Rh negative frequencies in Israel are only around 10%. A new article claims: Only an estimated 15% of people in Israel have the required blood types, which are all rare, and MDA are appealing for those who can, to donate as soon as possible. https://www.jpost.com/israel-news/mda-appeal-for-public-help-due-to-shortage-of-rare-blood-types-675863 Which is it? See also: