Will’s White Stick Buyer’s Guide

Apologies to Consumers’ Union for having fun with their trademark Buying Guide logo.

Covid-19 is something nobody wants to get, but everybody wishes they’d already had

Among participants who did not have prior PCR but who were deemed high risk, i.e., people with symptoms consistent with SARS-CoV-2 who were told by a healthcare provider they had presumed infection, lived with someone with confirmed infection, or were healthcare workers themselves, we found 36% of this population had IgG antibodies to SARS-CoV-2. This finding suggests that a majority of participants suspected of having Covid-19 actually were not infected with SARS-CoV-2; however, it may also include a false negative rate of our assay (which has a 92% sensitivity) or insufficient time for participants to mount an IgG antibody response.

Laminar flow at work.
21 days after symptoms is the earliest to test for IgG. 28 is better.
BioMedomics of North Carolina is the only U.S. kit.

The regulator noted that all forms of antibody tests can produce false results, based on their “inherent limitations,” and in some cases at least two antibody tests may need to be performed for one patient.

Professor Sir John Bell, GBE, FRS, Regius Professor of Medicine Oxford University, Government Advisor on Life Sciences.


The Innovita white stick.
From Sure test instructions.

Acceptable — Very Good

2,500 of these DeepBlue kit are buried in a landfill deep in the heart of Texas.


UPC Biosciences Inc.

Acceptable with caveats

Biolidics kit.

Not Acceptable

DecomBio stick.

On Probation

… health authorities in Spain stopped using a rapid diagnostic test (RDT) kit that required a nasopharyngeal (NP) swab to collect specimens to diagnose patients for the SARS-CoV-2 virus, saying the test kits from Shenzhen Bioeasy Biotechnology were unreliable. Turkey also rejected the Shenzen Bioeasy test kits after finding similar problems, according to The Middle East Eye. Ukraine and Georgia also bought kits from Bioeasy, according to published reports.

The Spanish Society of Infectious Diseases and Clinical Microbiology found that the Shenzen Bioeasy NP-swab tests had an accuracy rate of less than 30%, SCMP reported.



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