January 18, 2021 & January 19, 2021 - a podcast by COVID19LST

In today's episode we discuss:

—Epidemiology: Seroprevalence of SARS-CoV-2 antibodies in over 6000 healthcare workers show increased occupational risk. Physicians and laboratory scientists from Spain conducted a cross-sectional study of 6,038 healthcare workers (HCW) across 4 regions in Spain to assess the seroprevalence of IgG anti-SARS-CoV-2 antibodies. They found 11% of HCW (n=662) had IgG against SARS-CoV-2, with those with high (OR: 2.06; 95%CI: 1.63-2.62) and moderate (OR: 1.77; 95%CI: 1.32-2.37) risk exposures more likely to have antibodies. Because this rate of seropositivity is slightly higher than in the general Spanish population, authors suggest their data confirm the occupational risk of SARS-CoV-2 infection among HCW with working in a clinical environment.

—Adjusting Practice During COVID-19: There was an effect of the COVID-19 pandemic process on STEMI patients’ timeline? An interdisciplinary group of cardiology researchers from hospitals in Samsun and Sivas, Turkey, performed a combined observational analysis as well as chart review to assess the effects that the COVID-19 pandemic has had on the management of ST elevation myocardial infarction (STEMI) patients. They concluded that there was a delayed time to first medical contact (61 minutes in non-pandemic times versus 190 minutes during the pandemic), as well as a delayed time for patients to leave their house after their onset of symptoms (30 minutes in non-pandemic times versus 165 minutes during the pandemic). While this implies that there may need to be widespread analysis of medical responses to patients experiencing STEMI, the authors do comment on the fact that the COVID-19 burden in areas studied was relatively small when compared to hotspots around the world. Further investigation is required in areas that can represent a patient population more severely burdened by COVID-19, however these results suggest an opportunity for quality improvement changes to more efficiently manage patients with STEMI during the pandemic and improve outcomes.

—R&D: Diagnosis & Treatments: Fluvoxamine when compared to placebo can decrease clinical deterioration in outpatients with symptomatic COVID-19. A double-blind randomized clinical trial, conducted by physicians from Washington University in St. Louis, analyzed the efficacy of fluvoxamine (100 mg 3 times daily for 15 days) against a placebo to decrease clinical deterioration of COVID-19 in non-hospitalized patients with confirmed SARS-CoV-2 infection within 7 days and oxygen saturation 92% or greater. Clinical deterioration (defined as development of both 1) shortness of breath or hospitalization for shortness of breath or pneumonia and 2) oxygen saturation less than 92% on room air or need for supplemental oxygen to achieve oxygen saturation of 92% or greater) occurred in 0 of 80 patients in the fluvoxamine group and in 6 of 72 patients in the placebo group without a significant increase in adverse events. 

—Transmission & Prevention: Genomic evidence of points to in-flight transmission of SARS-CoV-2 despite predeparture testing. A study by the New Zealand Ministry of Health looking at the points of infection and transmission of SARS-CoV-2 in 86 people returning to New Zealand through an international flight from Dubai, UAE. Passengers were placed in managed isolation and quarantine and tested for SARS-CoV-2 on their third and twelfth day after their return; 7 passengers subsequently tested positive for COVID-19.

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