Vaccine Policy and Genetic Selection

The widespread use of the pertussis vaccine seems to have resulted in natural selection (or unnatural selection, rather) of strains of the bacteria that not only are more resistant to vaccination, but actually favors vaccinated individuals.  Read more…

Undervaccination is hardly the problem.

One critical piece of information the Times doesn’t indulge its readers with is that the vaccine does not prevent transmission of the disease. Instead, vaccinated individuals may become asymptomatic carriers.