Herd Immunity and Outbreaks

About Herd Immunity – The Political Blindspot

Harvard Study Proves Unvaccinated Children Pose No Risk
By Harvard-trained Immunologist Tetyana Obuchanych

The Hill – If Only Half of America is Properly Vaccinated Where Are All The Epidemics?

The Concept of Herd Immunity (blog)

The Herd Immunity Myth and How It Pits Parent Against Parent – The Healthy Home Economist

Herd Immunity and
Outbreaks in highly vaccinated populations

Major Measles Epidemic in region of Quebec despite 99% vaccination coverage
1,363 confirmed cases, at least 84.5% of those vaccinated, area 99% fully vaccinated

Pertussis Outbreak, Washington, 2012
Overall, 758 of 1,000 (75.8%) patients aged 3 months–10 years were up-to-date with the childhood diphtheria and tetanus toxoids and acellular pertussis (DTaP) doses. Receipt of Tdap was documented in 97 of 225 (43.1%) patients aged 11–12 years and in 466 of 604 (77.2%) patients aged 13–19 years. Estimated DTaP coverage in Washington among children aged 19–35 months was 93.2% for ≥3 doses and 81.9% for ≥4 doses in 2010; Tdap coverage in adolescents aged 13–17 years was estimated at 70.6% (3).

Pertussis (Whooping Cough) in fully vaccinated – Study

99% Fully Vaccinated during Outbreak
Harvard UniversityHerd Immunity Titers

69 Cases of Mumps in Australia
All Vaccinated

Whooping Cough
85% were vaccinated

Whooping Cough
90% of those infected in Vermont were fully vaccinated

87 cases of measles – all vaccinated

70 Cases of Whooping Cough In Reno County, All Vaccinated
(archived copy, original article edited out the vaccination status)

Disneyland: Failing Measles Vaccine to Blame
Global Research

5 Vaccinated Kids with Chickenpox, Sending unvaccinated kids home.
Charlotte Observer

Disneyland Outbreak STUDY (Patient Zero not identified)

Measles Outbreaks in China, 99% Compliance

Outbreak in Highly Vaccinated Population: USS Ardent, 2014

Pertussis high amongst fully immunized children in Lithuania

Pertussis outbreak in US elementary school with high vaccination coverage.

Pertussis in fully vaccinated population in North America

herd immunity travel