HI mums, can someone please help me. I am doing my research about the strains of measles, a few internet sources have stated that scientist have discovered 21 strains of measles. No where can I find all the names of the strains, does anyone have access to this information? Also the MMR vaccine, does it protect against all 21 strains? And lastly, there is some commotion about a measles outbreak in the US which started in Disney Land, does anyone know what strain of measles is it or what strains (if more than one). I asked my GP and she could not give me these answers. After opting out the MMR vaccine but am now willing to reconsider but I need to have the answers so I can make an informative choice.