Pertussis, or whooping cough, is one of those vaccine-preventable diseases that have been on the rise, as we pointed out here. That's because of waning immunity and low rates of revaccination, as well as fears of some parents.
It is hardly news that some people are ardently anti-vaccine (for NO good reason). And it is intuitively obvious that when children don t get vaccinated their risk for contracting a given infection is higher.
