The sample is a research paper about the role of Twitter in the post-truth era, particularly in shaping public opinions on health issues. The study explores the way Twitter was used to spread anti-vaccine sentiments and drive vaccine hesitancy in the wake of the 2015 measles resurgence in the United States. Employing a case study of 233 Twitter posts, accounts, and hashtags relating to the MMR (Measles, Mumps, and Rubella) vaccine, the study concludes that Twitter facilitates the spread of factual and false information with public health implications. The study recommends that policy makers adopt a long-term approach and more effective strategies such as reducing confirmation bias to minimize the spread of falsified information through social networking sites such as Twitter.