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Science: COVID-19 testing: One size does not fit all

Many types of tests are available for COVID-19 for clinical and public health use (see the figure). Testing can be performed in a central laboratory, at the point of care (POC), or in the community at the workplace, school, or home. COVID-19 testing begins with specimen collection. For medical use, a nasopharyngeal swab collected by a health care professional has been used for detection of virus infections. Demands on testing throughput for COVID-19, however, have driven new collection approaches, including saliva and less invasive nasal swabs. COVID-19 tests include molecular tests such as qPCR, isothermal amplification, and CRISPR, as well as antigen tests that detect SARS-CoV-2 proteins directly. Although rapid antigen tests have lower analytical sensitivity (i.e., require greater amounts of virus material to turn positive) than qPCR-based tests, their ability to detect infectious individuals with culturable virus is as high as for qPCR (3). Specificity (i.e., correctly identifying those not infected with SARS-CoV-2) of antigen tests achieves comparable results to molecular tests (4).

Archived Briefings from Protect Our Province BC

Title image for briefing April 20 - COVID in the House: Protect Your Loved Ones
Wednesday, April 27th from 12:00-1:00 PDT What should you do if someone in your house tests positive for COVID-19? How do we prevent it from passing to loved ones in the household? Why should we care? Facilitator: Dr. Lyne Filiatrault, retired Emergency Physician, Protect our Province BC member. Guest Speakers:  Joey Fox is a Professional… Continue reading POP BC Briefing #15: COVID-19 in the House – How to Protect Your Loved Ones
Title image for Briefing 14 April 7, 2022 - COVID Doesn't Take Breaks, Neither Can We
Thursday, April 7 at 12:00 noon PDT Ignoring the 6th wave won’t stop it. What does the evidence say? Join Dr. Lyne Filiatrault, Dr. Brenda Hardie, and Gosia Gasperowicz, PhD, as they discuss what BC needs to do to lower community transmission as the most infectious strain of COVID ever becomes dominant across the globe.… Continue reading POP BC Briefing #14: COVID-19 Doesn’t Take Breaks. Neither Can We.
Title image for Briefing 13: Ethics in Canada, March 23, 2022
Wednesday, March 23rd, 12:30-1:30 pm PT Join Canadian researcher and author Jon Parsons in a discussion with Protect our Province BC member Dr. Amy Tan about how Canada’s response to the COVID-19 pandemic amounts to a failure of ethical action.  The pandemic has brought issues with Canada’s governing systems and cultural identity into full view:… Continue reading POP BC Briefing #13: Lack of Ethics – How Canada is Failing with COVID-19

More News from Protect Our Province BC

header image for post, may we have the data?
May 12, 2022  Response to the BC Premier and Minister of Labour’s statement on lives “needlessly cut short” by “work-related illnesses or injuries” In many places in BC, on April 28, flags were flown at half-mast in response to the national Day of Mourning for Persons Killed or Injured in the Workplace. Also referred to… Continue reading “May we see the data?”
Post title - reinstate masks in public spaces
Protect Our Province BC, Safe Schools Coalition BC and BC School COVID Tracker are coming together to ask for mask protection in indoor public spaces, businesses, schools and on public transit in BC. The removal of BC’s mandated health protections has us concerned for the health and well-being of all British Columbians. “Now that masking… Continue reading Protect Our Province BC, Safe Schools Coalition BC and BC School COVID Tracker Issue Joint Press Release
translink masking open meeting title image
On March 11th, the British Columbia Public Health Officer, Dr. Bonnie Henry lifted the indoor mask mandate for most public places, with the main exception being healthcare settings.  TransLink immediately followed suit and lifted its own mask requirement, leaving commuters on  buses and trains with very few COVID-19 precautions. Unlike BC, Ontario and Quebec have… Continue reading Transit Users Ask Translink to Keep Mask Protections in Place.