Publications by authors named "Francis X Riedo"

The COVID-19 pandemic has upended societal norms and changed the way the health risks associated with respiratory viral infections are viewed. In this commentary, the authors advocate for mindfulness of continuing areas of uncertainty along with integration of the lessons learned into hospital-based practices to prevent harm to vulnerable patients rather than reverting to suboptimal prepandemic behaviors.

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Among EvergreenHealth Home Care Service professionals, no coronavirus disease 2019 (COVID-19) cases were reported when they were instructed to use standard, contact, and droplet precautions with eye protection while providing home health care to patients diagnosed with laboratory-confirmed severe acute respiratory coronavirus virus 2 (SARS-CoV-2). These precautions might provide some level of protection against coronavirus disease 2019 (COVID-19) among home healthcare personnel.

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Background: High morbidity and mortality have been observed in patients with cancer and coronavirus disease 2019 (COVID-19); however, there are limited data on antimicrobial use, coinfections, and viral shedding.

Methods: We conducted a retrospective cohort study of adult patients at the Seattle Cancer Care Alliance diagnosed with COVID-19 between February 28, 2020 and June 15, 2020 to characterize antimicrobial use, coinfections, viral shedding, and outcomes within 30 days after diagnosis. Cycle threshold values were used as a proxy for viral load.

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Long-term severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) shedding was observed from the upper respiratory tract of a female immunocompromised individual with chronic lymphocytic leukemia and acquired hypogammaglobulinemia. Shedding of infectious SARS-CoV-2 was observed up to 70 days, and of genomic and subgenomic RNA up to 105 days, after initial diagnosis. The infection was not cleared after the first treatment with convalescent plasma, suggesting a limited effect on SARS-CoV-2 in the upper respiratory tract of this individual.

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Background: SARS-CoV-2, the cause of coronavirus disease 2019 (COVID-19), is associated with respiratory-related morbidity and mortality. Assays to detect virus-specific antibodies are important to understand the prevalence of infection and the course of the immune response.

Methodology: Quantitative measurements of plasma or serum antibodies by luciferase immunoprecipitation assay systems (LIPS) to the nucleocapsid and spike proteins were analyzed in 100 cross-sectional or longitudinal samples from SARS-CoV-2-infected patients.

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Article Synopsis
  • SARS-CoV-2, the virus responsible for COVID-19, leads to respiratory illnesses and understanding how the immune system responds is crucial for tracking infections.
  • Researchers used advanced assays to measure antibodies in patient samples, finding that antibodies to the nucleocapsid protein were more consistent than those to the spike protein.
  • They observed that while antibody levels were not affected by heat inactivation, immunocompromised patients showed slower immune responses compared to those with normal immune function.
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With the rapidly expanding pandemic of SARS-CoV-2, there is concern that solid organ transplant recipients will be particularly vulnerable to infection and may experience a more severe clinical course. We report four cases of COVID-19 in solid organ transplant recipients including recipients of kidney, liver, lung, and heart transplants. We describe each patient's medical history including transplantation history, their clinical presentation and workup, and their course from diagnosis to either hospital discharge or to improvement in symptoms.

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Article Synopsis
  • Long-term care facilities are particularly vulnerable to severe Covid-19 outbreaks due to the age and health conditions of residents, combined with the movement of health care staff between facilities.* -
  • After detecting a case on February 28, 2020, health authorities in Washington launched extensive measures including contact tracing and quarantines, resulting in 167 confirmed cases linked to one facility by March 18, with high hospitalization and fatality rates among residents.* -
  • The findings highlight the necessity for long-term care facilities to proactively manage staff and visitor health, monitor patients, and enforce stringent infection control practices to mitigate Covid-19 risks.*
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On February 28, 2020, a case of coronavirus disease (COVID-19) was identified in a woman resident of a long-term care skilled nursing facility (facility A) in King County, Washington.* Epidemiologic investigation of facility A identified 129 cases of COVID-19 associated with facility A, including 81 of the residents, 34 staff members, and 14 visitors; 23 persons died. Limitations in effective infection control and prevention and staff members working in multiple facilities contributed to intra- and interfacility spread.

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This case series describes the clinical presentation, characteristics, and outcomes of patients with coronavirus disease 2019 (COVID-19) admitted to the intensive care unit at a public hospital in Washington State in February 2020, including initial reports of cardiomyopathy in one-third of the patients.

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