Bill Gates is donating millions of dollars for immunization program development through the World Health Organization to prevent polio, AIDS, malaria, and other diseases. While this is part of a good program to prevent infections, it is still important to treat the underlying reasons for suppressed immunity such as sanitation, clean water, and nutritious food. Just because immunizations could be very helpful for third world countries, doesn't mean that our kids need in the range of 70 immunizations by the time they are 18 years old. It also does not justify the continued use of thimerosal in vaccines.