Open AccessPro/Anti-vaxxers in Brazil: a temporal analysis of COVID vaccination stance in Twitter
Author(s) -
Andre Mediote de Sousa,
Karin Becker
Publication year - 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.5753/kdmile.2021.17467
Subject(s) - covid-19 , vaccination , government (linguistics) , immunization , population , politics , begging , political science , public relations , psychology , medicine , virology , environmental health , immunology , law , linguistics , philosophy , disease , pathology , infectious disease (medical specialty) , antigen
Collective imunization is critical to combat COVID, but a large portion of the population in many countries refuses to be vaccinated despite the availability of vaccines. We developed a temporal analysis of pro/against stances towards COVID vaccination in Brazil using Twitter. We summarized the main topics expressed by pro/anti-vaxxers using BERTopic, a dynamic topic modeling technique, and related them to events in the national scenario. The anti-vaxxers were prevalent throughout 2020, expressing concerns about mandatory vaccination with a strong political bias. The pro-vaxxer movement significantly increased by late 2020 with the begging of immunization and became prevalent in 2021. This group expresses joy and anxiety to get vaccinated and criticisms towards the Federal Government.