Pro-Disease is a free Chrome add-on developed by James Osborn. It falls under the category of Browsers and specifically belongs to the subcategory of Add-ons & Tools. The add-on aims to challenge the anti-vaccination movement by presenting a different perspective.

Pro-Disease is designed to provoke thought and generate discussion about the consequences of being against vaccinations. It does not promote or endorse the anti-vaccination movement but rather seeks to shed light on the potential risks associated with it.

The add-on replaces the term "Anti-vaxx" with "Pro-Disease" throughout webpages, highlighting the notion that being against vaccinations can lead to the support and spread of unnecessary diseases. By renaming the movement, Pro-Disease aims to encourage critical thinking and promote a better understanding of the importance of vaccinations.

Please note that this review is based solely on the information provided and does not reflect personal opinions or judgments.