This past month a recent perspective article (NEJM 2014; 371: 1661-3) provides an update on measles and the problems with vaccination rates.
- More measles cases in 2014 (592 thru Aug 29) than in any year in the past 20. Already, the number of cases this year is >3-fold the number in 2013 and ~10-fold more than in 2012
- Most cases are due to infections acquired during travel or due to cases being brought into U.S. by foreign travelers
- Problem has expanded due to increasing number of unvaccinated children. Vaccines “that remain in the vial are completely ineffective.”
- Measles remains one of the most contagious illnesses and typically one person can infect up to 18 susceptible persons. Due to its contagiousness, a high level of herd immunity (>92-94% immune) is needed to prevent sustained spread of virus.
- Measles can be deadly with case fatality rate of 0.2% to 0.3% in the developed world and much higher in the developing world (2-15%).
- Even a few cases are very expensive to control. A 2004 Iowa outbreak of only three patients cost more than $140,000 to contain/investigate. An outbreak in Arizona with only 7 patients cost more than $800,000.
Related blog posts:
- Parental Immunity (to Education) and Vaccine Decision …
- Why Doctors Don’t Want Unvaccinated Children in Their …
- Why Rich Kids Get Measles More Often in the U.S. …
- The Paradox of Vaccine Resistance | gutsandgrowth
- Vaccine Safety -Put into Perspective | gutsandgrowth
- Life and Limb: The Price of Not Vaccinating Children …
- Measles, Seizures and Sometimes Death due to Vaccine …
- Protecting the most vulnerable | gutsandgrowth
- Global Justice and Vaccine Policy | gutsandgrowth
- “Too many vaccines and autism” is debunked | gutsandgrowth