From Google Scholar & other sources: Selected Journal Articles, Newsletters, Dissertations, Theses, Commentary

From Google Scholar & other sources: Selected Journal Articles, Newsletters, Dissertations, Theses, Commentary

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Journal of Experimental Social Psychology
Volume 88, May 2020, 103947
Case Report
Donald Trump and vaccination: The effect of political identity, conspiracist ideation and presidential tweets on vaccine hesitancy
MJ Hornsey, M Finlayson, G Chatwood, CT Begeny…
:: Trump voters are more concerned about vaccines than other Americans.
:: This effect emerges via Trump voters’ greater willingness to believe conspiracies.
:: Reading Trump’s antivaxx tweets increases vaccination concern among Trump voters.
:: Trump’s antivaxx tweets did not polarize liberal voters into being more provaxx.
Donald Trump is the first U.S. President to be on the record as having anti-vaccination attitudes. Given his enormous reach and influence, it is worthwhile examining the extent to which allegiance to Trump is associated with the public’s perceptions of vaccine safety and efficacy. In both Study 1 (N = 518) and Study 2 (N = 316), Trump voters were significantly more concerned about vaccines than other Americans. This tendency was reduced to non-significance after controlling for conspiracist ideation (i.e., general willingness to believe conspiracy theories) and, to a lesser degree, political conservatism. In Study 2, participants were later exposed to real Trump tweets that either focused on his anti-vaccination views, or focused on golf (the control condition). Compared to when the same respondents were sampled a week earlier, there was a significant increase in vaccine concern, but only among Trump voters who were exposed to the anti-vaccination tweets. The effects were exclusively negative: there was no evidence that anti-vaccination Trump tweets polarized liberal voters into becoming more pro-vaccination. In line with the social identity model of leadership, Study 2 indicates that some leaders do not simply represent the attitudes and opinions of the group, but can also change group members’ opinions.


Cancer Control
Volume 27: 1-16 2020
Original Research Paper
Mining HPV Vaccine Knowledge Structures of Young Adults From Reddit Using Distributional Semantics and Pathfinder Networks
M Amith, T Cohen, R Cunningham, LS Savas, N Smith… –
The human papillomavirus (HPV) vaccine protects adolescents and young adults from 9 high-risk HPV virus types that cause 90% of cervical and anal cancers and 70% of oropharyngeal cancers. This study extends our previous research analyzing online content concerning the HPV vaccination in social media platforms used by young adults, in which we used Pathfinder network scaling and methods of distributional semantics to characterize differences in knowledge organization reflected in consumer- and expert-generated online content. The current study extends this approach to evaluate HPV vaccine perceptions among young adults who populate Reddit, a major social media platform. We derived Pathfinder networks from estimates of semantic relatedness obtained by learning word embeddings from Reddit posts and compared these to networks derived from human expert estimation of the relationship between key concepts. Results revealed that users of Reddit, predominantly comprising young adults in the vaccine catch up age-group 18 through 26 years of age, perceived the HPV vaccine domain from a virus-framed perspective that could impact their lifestyle choices and that their awareness of the HPV vaccine for cancer prevention is also lacking. Further differences in knowledge structures were elucidated, with implications for future health communication initiatives.


Annals of Oncology
Articles in Press
Reduced seroprevalence against vaccine preventable diseases (VPDs) in adult patients with cancer: necessity of routine vaccination as part of the therapeutic concept
A Guzek, AS Berghoff, J Jasinska, E Garner-Spitzer… –
Cancer patients are immunocompromised and thus have an increased risk for infections, such as vaccine-preventable diseases (VPDs).1,2 Studies in children with cancer showed impaired antibody (Ab) titers to various VPDs, yet data in adults are scarce.3,4 Hence, we evaluated the seroprevalence of Abs against the most common VPDs, namely measles, mumps, rubella, varicella/zoster (VZV), hepatitis A and B, diphtheria, tetanus, pertussis, and tick-borne encephalitis (TBE) in 478 adult patients with solid malignancies or hematological malignancies (HM) and in 117 age- and sex-matched healthy controls (supplementary Methods, supplementary Table S1, and supplementary Figure S1, available at Annals of Oncology online).