Did you know that research shows that asthma is a possible side effect of the adjutants in vaccinations? People like to throw out the argument that unvaccinated people are a danger to vaccinated people. A false argument. If vaccination is effective, then unvaccinated have no effect on the vaccinated. It’s possible that whoever exposed your son to Whooping Cough was also vaccinated against it as your son was. Most of the recent outbreak is in vaccinated people. It wasn’t necessarily an unvaxed person that “spread” it to your son.
http://wwwnc.cdc.gov/eid/article/15/8/08-1511_article.htm
Bordetella pertussis Strains with Increased Toxin Production Associated with Pertussis Resurgence
“In the 1990s, a resurgence of pertussis was observed in a number of countries with highly vaccinated populations, and pertussis has become the most prevalent vaccine-preventable disease in industrialized countries. We present evidence that in the Netherlands the dramatic increase in pertussis is temporally associated with the emergence of Bordetella pertussis strains carrying a novel allele for the pertussis toxin promoter, which confers increased pertussis toxin (Ptx) production. Epidemiologic data suggest that these strains are more virulent in humans. We discuss changes in the ecology of B. pertussis that may have driven this adaptation. Our results underline the importance of Ptx in transmission, suggest that vaccination may select for increased virulence, and indicate ways to control pertussis more effectively.”