Tracking Vaccine Effectiveness in an Evolving Pandemic, Countering Misleading Hot Takes and Epidemiological Fallacies
- Jeffrey Morris

- Apr 10, 2024
- 1 min read
I have a paper soon to appear in American Journal of Epidemiology on this topic, but today I gave a talk on this topic for a group of Epidemiology students and faculty at University of Pennsylvania today.
The talk covers various epidemiological fallacies that have led to people misinterpreting/misrepresenting observational data throughout the pandemic, with a focus on evaluating vaccine effectiveness and a short discussion on safety.
I also discuss a few of the key principles that need to be followed when analyzing observational data to avoid these fallacies.
Here is a video file containing the talk:


Social media is flooded daily with rumors and questionable headlines. Too often, people spread posts before verifying the source. DebunkedDaily examines popular claims, separates fact from fiction, and presents clear explanations. It encourages informed decisions and promotes smarter online engagement.
Heartfelt thanks for launching Maiya Samman Yojana and Atal Pension Yojana. Both schemes provide great support to needy citizens. Maiya Samman Yojana empowers women financially, and Atal Pension Yojana guarantees monthly pension after old age. These initiatives reduce financial stress and increase dignity among families. I strongly recommend people, especially workers and women, to enroll and take advantage. Such welfare programs truly improve living standards and social security across the country.
Really interesting overview of a topic that’s been so widely misunderstood over the past few years. I think the focus on clear principles for evaluating vaccine effectiveness is very valuable because it gives people a framework instead of just conclusions. It actually reminded me of some discussions I’ve seen around how presenting complex data clearly online can shape public understanding, there was a similar angle touched on at https://direwolfseo.co.uk/. Thanks for sharing the talk, cheers!
Trezor.io/start is the official and most trusted platform to set up your Trezor hardware wallet and secure your cryptocurrency investments from online threats. By visiting this website, users can easily install Trezor Suite, create a new crypto wallet, and manage digital assets with enhanced security.
For educators, games offer something traditional methods often struggle with: engagement without pressure. A well-designed game encourages curiosity, allows mistakes without fear, and rewards exploration rather than perfection. VSQUAD understands this deeply, find out more. They see games not just as products, but as learning ecosystems - spaces where players can develop skills, emotional resilience, and confidence at their own pace.