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Modeling U.S. Health Agencies' Message Dissemination on Twitter and Users' Exposure to Vaccine-related Misinformation Using System Dynamics
Shangde Gao
Yan Wang
Lisa Platt
Anouck Adrot
Rob Grace
Kathleen Moore
Christopher W. Zobel
This research intends to answer: how do (i) generation frequency and (ii) retweeting count of health agencies' messages impact the exposure of the general users to vaccine-related misinformation on Twitter? We creatively employed a Susceptible-Infected-Recovered (SIR) System Dynamics paradigm to model interactions between message dissemination of 168 U.S. health agencies and proportions of users who are at different exposure statuses to misinformation, namely "Susceptible", "Infected", or "Recovered" status. The SIR model was built based on the vaccine-relevant tweets posted over November and December in 2020. Our preliminary outcomes suggest that augmenting the generation frequency of agencies' messages and increasing retweeting count can effectively moderate the exposure risk to vaccine-related misinformation. This model illustrates how health agencies may combat vaccine hesitancy through credible information dissemination on social media. It offers a novel approach for crisis informatics studies to model different information categories and the impacted population in the complex digital world.
openurl:?ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fidl.iscram.org%2F&genre=proceeding&title=Modeling%20U.S.%20Health%20Agencies%27%20Message%20Dissemination%20on%20Twitter%20and%20Users%27%20Exposure%20to%20Vaccine-related%20Misinformation%20Using%20System%20Dynamics&stitle=Iscram%202021&issn=978-1-949373-61-5&date=2021&spage=333&epage=344&aulast=Shangde%20Gao&au=Yan%20Wang&au=Lisa%20Platt&pub=Virginia%20Tech&place=Blacksburg%2C%20VA%20%28USA%29&sid=refbase%3AISCRAM
url:http://idl.iscram.org/show.php?record=2337
citekey:ShangdeGao_etal2021
citation:Shangde Gao, Yan Wang, & Lisa Platt. (2021). Modeling U.S. Health Agencies' Message Dissemination on Twitter and Users' Exposure to Vaccine-related Misinformation Using System Dynamics. In Anouck Adrot, Rob Grace, Kathleen Moore, & Christopher W. Zobel (Eds.), ISCRAM 2021 Conference Proceedings – 18th International Conference on Information Systems for Crisis Response and Management (pp. 333-344). Blacksburg, VA (USA): Virginia Tech.
2021
ConferencePaper
text
COVID-19, misinformation, social media, System Dynamics, vaccine hesitancy
file:http://idl.iscram.org/files/shangdegao/2021/2337_ShangdeGao_etal2021.pdf
Virginia Tech
English
978-1-949373-61-5
ISCRAM 2021 Conference Proceedings – 18th International Conference on Information Systems for Crisis Response and Management
2021
333
344
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