The COVID-19 pandemic has created a public health crisis. Because SARS-CoV-2 can spread from individuals with presymptomatic, symptomatic, and asymptomatic infections, the reopening of societies and the control of virus spread will be facilitated by robust population screening, for which virus testing will often be central. After infection, individuals undergo a period of incubation during which viral titers are too low to detect, followed by exponential viral growth, leading to peak viral load and infectiousness and ending with declining titers and clearance. Given the pattern of viral load kinetics, we model the effectiveness of repeated population screening considering test sensitivities, frequency, and sample-to-answer reporting time. These results demonstrate that effective screening depends largely on frequency of testing and speed of reporting and is only marginally improved by high test sensitivity. We therefore conclude that screening should prioritize accessibility, frequency, and sample-to-answer time; analytical limits of detection should be secondary.
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Science: Test sensitivity is secondary to frequency and turnaround time for COVID-19 screening
Archived Briefings from Protect Our Province BC
As we start a new school year, clean air in schools is a vital issue not only because of the health effects from the ongoing COVID-19 pandemic and air pollution, but because of the direct link to the ability of children to learn. Hear about the new recommendations for Indoor Air Quality in Schools and Childcare Facilities from Vancouver Coastal Health and Fraser Health.
“For some of the most vulnerable patients, the air in the hospital can be deadlier than the diagnosis that brought them in”
Join Protect our Province BC and Drs. Susan Lee, Jean Warneboldt, and Victor Leung to hear about their advocacy, their struggles and successes in improving the air quality in different BC Health Authorities. Why are different healthcare administrations within BC treating this critical topic so differently - in one, obstructing and blocking and in another rewarding and awarding?
In honor of February being Heart Month, cardiologist Dr. Leslie Kasza joined Protect our Province BC’s Dr. Susan Kuo for a discussion on COVID-19’s impact on heart health and how you can reduce your risk. Don’t be fooled into thinking it won’t happen to you because you are _________, fill in the blank: young, healthy vaccinated and/or you only had a mild infection, etc.
More News from Protect Our Province BC
No lessons were learned. This year, despite the lessons that could have been learned and implemented, BC public health was as ill prepared as it was last year for the viral "respiratory season”. * And so on January 9, a new record number of hospital admissions was set at 10,345 . For more up to… Continue reading State of Public Health in BC
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