In 2010, California suffered the largest and deadliest outbreak
of pertussis, also known as whooping cough,” in more than fifty
years. This tragedy was avoidable. An effective vaccine has been
available since the 1940s. In recent years other diseases, like
measles and mumps, have also made a comeback. The reason for
these epidemics can be traced to a group whose vocal proponents
insist, despite evidence to the contrary, that vaccines... more...