Please provide your email address to receive an email when new articles are posted on . The key to better understanding the efficacy vs. effectiveness gap in drug therapies could lie in real-world ...

An mRNA influenza vaccine bests an inactivated quadrivalent flu vaccine against two different strains in phase 3 study.

There was – rightfully – a lot of excitement when Pfizer and BioNTech announced interim results from their COVID vaccine trial. The vaccine, called BNT162b2, was reported to have an “efficacy rate ...

The pandemic has brought many tricky terms and ideas from epidemiology into everyone’s lives. Two particularly complicated concepts are vaccine efficacy and effectiveness. These are not the same thing ...

Efficacy can be defined as the capacity to generate an effect, such as lowering blood pressure. This is measured under ideal conditions with expert supervision in a group of patients through a ...

The studies Sen. Ron Johnson’s office sent examined COVID vaccine effectiveness, not efficacy. Efficacy refers to how well a vaccine performs in a clinical trial, and each of the vaccines were highly ...

Zania Stamataki is a viral immunologist at the University of Birmingham, UK. She is a member of the British Society for Immunology and she cultures SARS-CoV-2 in category 3 containment labs to ...

This article is republished here with permission from The Conversation. This content is shared here because the topic may interest Snopes readers; it does not, however, represent the work of Snopes ...