quote from the internet

The Internet is a big place. As it happens, the quote comes from here. Scroll down to "Immunogenicity and Vaccine Efficacy" and it is an INCOMPLETE QUOTE. The full paragraph reads:

Measles antibodies develop in approximately 95% of children vaccinated at age 12 months. Seroconversion rates are similar for single-antigen measles, MMR vaccine, and MMRV vaccine. Approximately 2% to 7% of children who receive only 1 dose of MMR vaccine fail to respond to it, i.e., they experience primary vaccine failure. MMR vaccine failure can occur because of passive antibody in the vaccine recipient, immaturity of the immune system, damaged vaccine, or other reasons. Most persons who fail to respond to the first dose will respond to a second dose. Studies indicate that more than 99% of persons who receive 2 doses of measles vaccine (with the first dose administered no earlier than the first birthday) develop serologic evidence of measles immunity.

Changes the view, doesn't it? Even good science sources like the CDC can be manipulated by those who have something to prove. Incomplete information can be as harmful as no information.
Most persons who fail to respond to the first dose will respond to a second dose.

This may be in the BS section of the page, but stop with the BS.