Publications by authors named "John J Hanna"

Article Synopsis
  • The study investigates the spread of mis- and disinformation related to COVID-19, highlighting its prevalence and the role of social media in amplifying false information.
  • A comprehensive review of 868 peer-reviewed articles from 2020 to 2022 was conducted, revealing that over a third focused on mitigation and prevention strategies.
  • Analysis showed a predominance of negative sentiments in the literature, with fear and sadness being the most common emotions linked to the misinformation surrounding the pandemic.
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Background: The interplay between SARS-CoV-2 and contemporaneous bacterial or fungal culture growth may have crucial implications for clinical outcomes of hospitalized patients. This study aimed to quantify the effect of microbiological culture positivity on mortality among hospitalized patients with SARS-CoV-2.

Methods: In this retrospective cohort study, we included adult hospitalized patients from OPTUM COVID-19 specific data set, who tested positive for SARS-CoV-2 within 14 days of hospitalization between 01/20/2020 and 01/20/2022.

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Article Synopsis
  • The rise of antimicrobial resistant (AMR) infections poses a significant global health danger, influenced by complex factors, including socioeconomic conditions.
  • A study in the Dallas-Fort Worth area analyzed patient data from 2015 to 2020, linking bacterial culture results to socioeconomic indices to understand AMR patterns.
  • Findings indicated that regions with high deprivation levels had higher AMR rates, suggesting that improving socioeconomic factors could help reduce AMR spread.
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Purpose Of Review: This review examines the current state and future prospects of machine learning (ML) in infection prevention and control (IPC) and antimicrobial stewardship (ASP), highlighting its potential to transform healthcare practices by enhancing the precision, efficiency, and effectiveness of interventions against infections and antimicrobial resistance.

Recent Findings: ML has shown promise in improving surveillance and detection of infections, predicting infection risk, and optimizing antimicrobial use through the development of predictive analytics, natural language processing, and personalized medicine approaches. However, challenges remain, including issues related to data quality, model interpretability, ethical considerations, and integration into clinical workflows.

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Analyzing data from a national deidentified electronic health record-based data set using a matched case-control study design, we found that antibiotic use and severity of illness were independent risk factors for healthcare-associated candidemia in adult patients hospitalized with SARS-CoV-2 infection. Interleukin-6 inhibitor and corticosteroid use were not independent risk factors.

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Background: Lack of consensus on the appropriate look-back period for multi-drug resistance (MDR) complicates antimicrobial clinical decision support. We compared the predictive performance of different MDR look-back periods for five common MDR mechanisms (MRSA, VRE, ESBL, AmpC, CRE).

Methods: We mapped microbiological cultures to MDR mechanisms and labeled them at different look-back periods.

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Background: In 2011, the American Board of Medical Specialties established clinical informatics (CI) as a subspecialty in medicine, jointly administered by the American Board of Pathology and the American Board of Preventive Medicine. Subsequently, many institutions created CI fellowship training programs to meet the growing need for informaticists. Although many programs share similar features, there is considerable variation in program funding and administrative structures.

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Mycobacterial infections of the foot and ankle are uncommon. In a cohort of 2340 patients with diabetic foot infection (DFI) in a region with increased prevalence of mycobacterial disease, we identified no clinically significant positive cultures over a 3-year period. Routine mycobacterial culture of DFIs is of limited clinical utility.

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Article Synopsis
  • The study explored whether getting vaccinated against COVID-19 right before or after testing positive improves patient outcomes among those who were previously unvaccinated.
  • Researchers analyzed data from a large group of adults who tested positive for COVID-19 and looked specifically at outcomes within 30 days of their diagnosis.
  • Findings revealed no significant difference in disease progression between vaccinated and unvaccinated patients during the acute infection period, suggesting that vaccination at this time may not enhance recovery.
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Large Language Models (LLM) are AI tools that can respond human-like to voice or free-text commands without training on specific tasks. However, concerns have been raised about their potential racial bias in healthcare tasks. In this study, ChatGPT was used to generate healthcare-related text for patients with HIV, analyzing data from 100 deidentified electronic health record encounters.

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Background: Studies on COVID-19 in people with HIV (PWH) have had limitations. Further investigations on risk factors and outcomes of SARS-CoV-2 infection among PWH are needed.

Methods: This retrospective cohort study leveraged the national OPTUM COVID-19 data set to investigate factors associated with SARS-CoV-2 positivity among PWH and risk factors for severe outcomes, including hospitalization, intensive care unit stays, and death.

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Article Synopsis
  • The study examines the impact of COVID-19 on children, highlighting hospitalization, ICU admission, invasive support, and death as serious outcomes.
  • Factors linked to worse results include preexisting health conditions and living in the Southern U.S., while vaccination showed protective effects, especially in those aged 5 to 18 years.
  • The research stresses the need for further investigation into health inequalities and outcomes, particularly among uninsured or underinsured children.
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Background: Social media platforms like Twitter provide important insights into the public's perceptions of global outbreaks like monkeypox. By analyzing tweets, we aimed to identify public knowledge and opinions on the monkeypox virus and related public health issues.

Methods: We analyzed English-language tweets using the keyword "monkeypox" from 1 May to 23 July 2022.

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Background: An undiagnosed HIV infection remains a public health challenge. In the digital era, social media and digital health communication have been widely used to accelerate research, improve consumer health, and facilitate public health interventions including HIV prevention.

Objective: We aimed to evaluate and compare the projected cost and efficacy of different simulated Facebook (FB) advertisement (ad) approaches targeting at-risk populations for HIV based on new HIV diagnosis rates by age group and geographic region in the United States.

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We report a case of cervical blastomycosis with associated paravertebral involvement and severe spinal canal stenosis in a 48-year-old patient presenting with acute airway obstruction from a retropharyngeal abscess. Our case was also complicated by severe hypokalemia that developed during the blastomycosis treatment course with posaconazole and which improved after discontinuation and replacement therapy. After 12 months of blastomycosis-targeted therapy, our patient had complete resolution of clinical, laboratory, and radiological findings of blastomycosis.

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Background: Undiagnosed human immunodeficiency virus (HIV) infection remains a public health challenge. We explore Facebook (FB) advertisement (Ads) cost per new HIV diagnosis using non-targeted Ads, a routine testing model against targeted Ads, and a focused testing model in Texas.

Methods: On 14 October 2021, we created (without launching) Texas-based, USD 10 targeted (using criteria matching HIV populations at risk) and non-targeted FB Ads for 10 days.

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Background: We explore the ivermectin discourse and sentiment in the United States with a special focus on political leaning through the social media blogging site Twitter.

Methods: We used sentiment analysis and topic modeling to geospatially explore ivermectin Twitter discourse in the United States and compared it to the political leaning of a state based on the 2020 presidential election.

Results: All modeled topics were associated with a negative sentiment.

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