Tag: herd immunity

“We’ll Have Herd Immunity by April”: Reflections on a Failed Prediction

Surgical oncologist Dr. Marty Makary predicted in February that we would have herd immunity to COVID-19 in April. In late July now, it is clear that we do not, but Dr. Makary continues to make dubious and outright incorrect statements about COVID-19 on national platforms to which he has access. Why can't he just admit that his prediction had been in error?

/ July 25, 2021

COVID Vaccines Probably Prevent Spread

The evidence is preliminary, but it looks like the COVID vaccines do reduce the risk of spread of SARS-CoV-2.

/ March 10, 2021

Will Natural Herd Immunity End the Pandemic?

Is natural herd immunity a viable path to controlling the pandemic? Here is why that is a terrible idea.

/ October 14, 2020

The Pertussis Resurgence

A new analysis shows that the resurgence of pertussis is largely due historical patterns of vaccination. This and other data show the importance of full vaccine compliance in preventing returning epidemics of this deadly disease.

/ April 4, 2018

Measles gets a helping hand

In a recent post I shared a bit of my personal, near-death experience with measles during the US epidemic of 1989-1991. As I describe in that post, I contracted a very serious measles infection at the end of medical school, and was highly infectious when I interviewed for a residency position at Seattle Children’s Hospital. Like others my age who received an...

/ February 28, 2014

California Bill AB 2109: The Antivaccine Movement Attacks School Vaccine Mandates Again

AB 2109 in California makes it harder for parents to claim personal belief exemptions to school vaccine requirements by requiring that parents visit a physician or other enumerated health care provider to counsel them on the risks of leaving their child unvaccinated, thus providing informed consent. Not surprisingly, antivaxers do not like it.

/ March 26, 2012