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1. Vaccines and more: The response of Dark Web marketplaces to the ongoing COVID-19 pandemic

   https://doi.org/10.1371/journal.pone.0275288  

   Bracci, Alberto; Nadini, Matthieu; Aliapoulios, Maxwell; McCoy, Damon; Gray, Ian; Teytelboym, Alexander; Gallo, Angela; Baronchelli, Andrea (November 2022, PLOS ONE)

   Botta, Federico (Ed.)

   Early analyses revealed that dark web marketplaces (DWMs) started offering COVID-19 related products (e.g., masks and COVID-19 tests) as soon as the COVID-19 pandemic started, when these goods were in shortage in the traditional economy. Here, we broaden the scope and depth of previous investigations by considering how DWMs responded to an ongoing pandemic after the initial shock. Our dataset contains listings from 194 DWMs collected until July 2021. We start by focusing on vaccines. We find 248 listings offering approved vaccines, like Pfizer/BioNTech and AstraZeneca, as well as vendors offering fabricated proofs of vaccination and COVID-19 passports. Then, we consider COVID-19 related products. We show that, as the regular economy has become able to satisfy the demand of these goods, DWMs have decreased their offer. Next, we analyse the profile of vendors of COVID-19 related products and vaccines. We find that most of them are specialized in a single type of listings and are willing to ship worldwide. Finally, we consider a broader set of listings mentioning COVID-19, in order to assess the general impact of the pandemic on the broader activity of DWMs. Among 10,330 such listings, we show that recreational drugs are the most affected among traditional DWMs product, with COVID-19 mentions steadily increasing since March 2020. We anticipate that our results will be of interest to researchers, practitioners, and law enforcement agencies focused on the study and safeguard of public health. 

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2. A Longitudinal Study of Student Mental Health during the Course of the COVID-19 Pandemic

   Danowitz, Andrew; Beddoes, Kacey (June 2023, 2023 ASEE Annual Conference & Exposition)

   The early phases of the COVID-19 pandemic in the United States caused unprecedented disruption to engineering students and society-at-large. Residential students suddenly found themselves forced off-campus and into a new regime of online learning. On top of this, students faced pandemic related uncertainty about their health and the health of their loved ones, restrictions on social life, and the privations of a stuttering economy. It is perhaps unsurprising, then, that during the early days of the COVID-19 pandemic the engineering student population saw large increases in incidences of depression and other psychological conditions. While COVID-19 continues to be a concern, many of the restrictions and precautions associated with the early outbreak have been relaxed. Most engineering programs are back to in person learning, and strict COVID-testing regimes, mask mandates, and limits on large public gatherings have been largely phased out. With academia and society slowly adjusting to this “new normal,” it is important to know whether and to what extent mental health of engineering students has changed over the course of the pandemic. This work explores this question by analyzing longitudinal data collected at four times from 2019-2021. We analyze how the prevalence of different conditions changed with the onset of the COVID-19 pandemic, and whether they have returned to pre-pandemic levels. Among other results, we found statistically significant increases were observed in total depressive disorders between our initial sample (Fall 2019) and a sample taken immediately post-COVID (Spring 2020). While measured rates of depression decreased between Spring 2020 and Fall 2021, it was not statistically significant, potentially indicating that the student population is still recovering on this metric. Conversely our data shows a statistically significant drop in moderate-to-major psychological distress between our Fall 2019 pre-pandemic sampling and our Fall 2021 post-pandemic sampling indicating, potentially indicating an improvement in overall mental health. Breaking the data down by gender, no significant changes were observed across any measure during the four sample periods for women respondents. Men, however, showed a significant increase in depressive disorders from Fall 2019 to Spring 2020; and a significant decrease in depressive disorders from Spring 2020 to Fall 2021. 

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3. Psychosocial Effects of the COVID-19 Pandemic: Large-scale Quasi-Experimental Study on Social Media

   https://doi.org/10.2196/22600  

   Saha, Koustuv; Torous, John; Caine, Eric D; De Choudhury, Munmun (January 2020, Journal of Medical Internet Research)

   null (Ed.)

   Background The COVID-19 pandemic has caused several disruptions in personal and collective lives worldwide. The uncertainties surrounding the pandemic have also led to multifaceted mental health concerns, which can be exacerbated with precautionary measures such as social distancing and self-quarantining, as well as societal impacts such as economic downturn and job loss. Despite noting this as a “mental health tsunami”, the psychological effects of the COVID-19 crisis remain unexplored at scale. Consequently, public health stakeholders are currently limited in identifying ways to provide timely and tailored support during these circumstances. Objective Our study aims to provide insights regarding people’s psychosocial concerns during the COVID-19 pandemic by leveraging social media data. We aim to study the temporal and linguistic changes in symptomatic mental health and support expressions in the pandemic context. Methods We obtained about 60 million Twitter streaming posts originating from the United States from March 24 to May 24, 2020, and compared these with about 40 million posts from a comparable period in 2019 to attribute the effect of COVID-19 on people’s social media self-disclosure. Using these data sets, we studied people’s self-disclosure on social media in terms of symptomatic mental health concerns and expressions of support. We employed transfer learning classifiers that identified the social media language indicative of mental health outcomes (anxiety, depression, stress, and suicidal ideation) and support (emotional and informational support). We then examined the changes in psychosocial expressions over time and language, comparing the 2020 and 2019 data sets. Results We found that all of the examined psychosocial expressions have significantly increased during the COVID-19 crisis—mental health symptomatic expressions have increased by about 14%, and support expressions have increased by about 5%, both thematically related to COVID-19. We also observed a steady decline and eventual plateauing in these expressions during the COVID-19 pandemic, which may have been due to habituation or due to supportive policy measures enacted during this period. Our language analyses highlighted that people express concerns that are specific to and contextually related to the COVID-19 crisis. Conclusions We studied the psychosocial effects of the COVID-19 crisis by using social media data from 2020, finding that people’s mental health symptomatic and support expressions significantly increased during the COVID-19 period as compared to similar data from 2019. However, this effect gradually lessened over time, suggesting that people adapted to the circumstances and their “new normal.” Our linguistic analyses revealed that people expressed mental health concerns regarding personal and professional challenges, health care and precautionary measures, and pandemic-related awareness. This study shows the potential to provide insights to mental health care and stakeholders and policy makers in planning and implementing measures to mitigate mental health risks amid the health crisis. 

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4. Public health factors help explain cross country heterogeneity in excess death during the COVID19 pandemic

   https://doi.org/10.1038/s41598-023-43407-0  

   Sun, Min Woo; Troxell, David; Tibshirani, Robert (December 2023, Scientific Reports)

   Abstract The COVID-19 pandemic has taken a devastating toll around the world. Since January 2020, the World Health Organization estimates 14.9 million excess deaths have occurred globally. Despite this grim number quantifying the deadly impact, the underlying factors contributing to COVID-19 deaths at the population level remain unclear. Prior studies indicate that demographic factors like proportion of population older than 65 and population health explain the cross-country difference in COVID-19 deaths. However, there has not been a comprehensive analysis including variables describing government policies and COVID-19 vaccination rate. Furthermore, prior studies focus on COVID-19 death rather than excess death to assess the impact of the pandemic. Through a robust statistical modeling framework, we analyze 80 countries and show that actionable public health efforts beyond just the factors intrinsic to each country are important for explaining the cross-country heterogeneity in excess death. 

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5. Recommendations for Health Equity and Virtual Care Arising From the COVID-19 Pandemic: Narrative Review

   https://doi.org/10.2196/23233  

   Shaw, James; Brewer, LaPrincess C; Veinot, Tiffany (January 2021, JMIR Formative Research)

   null (Ed.)

   Background The COVID-19 health crisis has disproportionately impacted populations who have been historically marginalized in health care and public health, including low-income and racial and ethnic minority groups. Members of marginalized communities experience undue barriers to accessing health care through virtual care technologies, which have become the primary mode of ambulatory health care delivery during the COVID-19 pandemic. Insights generated during the COVID-19 pandemic can inform strategies to promote health equity in virtual care now and in the future. Objective The aim of this study is to generate insights arising from literature that was published in direct response to the widespread use of virtual care during the COVID-19 pandemic, and had a primary focus on providing recommendations for promoting health equity in the delivery of virtual care. Methods We conducted a narrative review of literature on health equity and virtual care during the COVID-19 pandemic published in 2020, describing strategies that have been proposed in the literature at three levels: (1) policy and government, (2) organizations and health systems, and (3) communities and patients. Results We highlight three strategies for promoting health equity through virtual care that have been underaddressed in this literature: (1) simplifying complex interfaces and workflows, (2) using supportive intermediaries, and (3) creating mechanisms through which marginalized community members can provide immediate input into the planning and delivery of virtual care. Conclusions We conclude by outlining three areas of work that are required to ensure that virtual care is employed in ways that are equity enhancing in a post–COVID-19 reality. 

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