2025 Measles Outbreak

Here are statistics from the CDC about the 1,197 individuals (as of 13 June 2025) that have been infected with measles during the 2025 outbreak: 793 were children (347 (29%) aged <5; 446 (37%) aged 5-19) 5% were previously vaccinated (2% with 1 MMR dose; 3% with 2 MMR doses) 144 (12%) were hospitalized 3…

Vaccine choice = more measles infection

Texas is moving to allow for more freedom of choice with respect to receipt of vaccines. The Economist reports: Texas legislators meeting in Austin, the state capital, are debating new laws to relax vaccine rules, urged on by Texans for Vaccine Choice (TFVC). On February 18th activists in “Come and Make Me” shirts took to…

Trump, RFK Jr. and Vaccines

The Washington Post reports on a meeting between President-elect Trump, Robert F. Kennedy, Jr. and a number of CEOs of pharmaceutical firms. When the topic turned to vaccines, the discussion was not about banning the products, the three people said. Kennedy spoke about the need for better study of the vaccine dosing schedule for newborns…

Risk compensation after COVID-19 vaccination

Could COVID-19 be more efficacious than effective? This could be the case if individuals receiving COVID-19 engaged in ‘risk compensation’. In short, without a COVID-19 vaccine, individuals may have refrained from travel and engaged in social distancing. After a COVID-19 vaccine, these same individuals could have been more likely to travel and less likely to…

The benefit of HPV vaccination

In part due to the COVID-19 pandemic, vaccination have become a hot button issue. This is true even for non-COVID vaccines that have proven significant health benefits, such as those for human papillomavirus vaccines (HPV). Although betweeen 2016 and 2021 the share of teenagers receiving their HPV vaccination series increased from 60% to 77%, Bloomberg…

Uncertainty and Vaccination Decisions

An interesting result from Courbage and Peter (2021): …uncertainty about the probability of side effects and the efficacy of the vaccine always reduces take-up under ambiguity aversion. However, uncertainty about the underlying disease, being the probability of sickness or the probability of a severe course of disease, may either encourage or discourage vaccination. Because vaccination…

“Mr. Biden is wrong”

That was the conclusion of The Economist on his decision to suspend intellectual property protections for the makers of COVID-19 vaccines. In the article “Ten million reasons to vaccinate the world“, they write: Many experts argue that, because some manufacturing capacity is going begging, millions more doses might become available if patent-owners shared their secrets,…