Topic: Threshold

The hosts play advertisements for new NPR podcasts, including "Forked," which focuses on food politics in the "MAHA" (Make America Healthy Again) era. Another ad promotes "Threshold," a podcast described as a "listening renaissance" focused on ecological crises. The hosts mock the "groovy" and "pretentious" tone of the ads, contrasting them with the direct media deconstruction provided by No Agenda.

The diagnostic validity of the PCR test is questioned, citing the intentions of its inventor, Cary Mullis, who stated it was not a diagnostic tool. Concerns are raised regarding the CDC's use of different cycle thresholds for vaccinated (35 cycles) versus unvaccinated (40-45 cycles) individuals. Critics argue these standards are designed to statistically favor vaccine efficacy by reducing positive results in the vaccinated population.

The World Health Organization issued a notice regarding PCR testing standards, leading to reports of laboratories lowering cycle thresholds to 27 cycles. Critics suggest this change, occurring shortly after the U.S. presidential transition, is designed to reduce reported case numbers. Epidemiologist Dr. Kat addressed the notice on TikTok, arguing that false positives are rare and emphasizing the need for clinical diagnosis alongside genetic material detection.

The World Health Organization released a directive regarding the risk of false SARS-CoV-2 results when using RT-PCR reagents. The notice emphasizes that high cycle counts can make it difficult to distinguish between background noise and the actual presence of the virus.

The Florida Department of Health has mandated that all labs report the cycle thresholds for PCR tests to provide more context on viral load. This policy change follows a high-profile police raid on the home of Rebecca Jones, a former state data scientist accused of unauthorized access to emergency alert systems. Jones alleged that the raid was political retaliation for her criticism of Florida's COVID-19 data reporting.

A global team of experts identified ten fatal flaws in the Corman-Drosten report, which established the protocol for PCR-based COVID-19 testing. The review claims the tests cannot distinguish between live virus and non-infectious viral fragments. Dr. Anthony Fauci is cited as previously stating that PCR results with a cycle threshold above 35 are often unreliable, contradicting widespread testing practices.

Retired Thai-German microbiologist Professor Sukharit Bhakdi explains the technical limitations of PCR testing for clinical diagnosis. Bhakdi argues that detecting viral genome fragments in the nose or throat does not necessarily equate to an active infection or the COVID-19 disease. He compares the sensitivity of high-cycle PCR tests to a breathalyzer that might detect trace amounts of alcohol without the subject being intoxicated.

Dr. James Linden discussed the financial incentives driving the production of PCR primers and testing kits. He noted that labs are often running 45 cycles, which increases the likelihood of false positives from environmental fragments. The discussion suggests that the rush for government grants has influenced the widespread adoption of these high-sensitivity testing protocols.

An appeals court in Portugal ruled that it is unlawful to quarantine people based solely on a PCR test, citing a 97% false-positive rate when cycle thresholds exceed 35. The hosts praise Portugal as a "common sense" country and digress into the high quality and low price of Portuguese wine and olive oil.

Vermont Health Commissioner Dr. Mark Levine addressed questions regarding the cycle threshold (Ct) used in PCR testing during a public radio appearance. Levine acknowledged that most assays are calibrated to a Ct in the 30-range, noting that higher cycles may detect non-infectious viral particles. He stated that the current public health goal is to identify as many infections as possible, even if the science regarding transmissibility at high Ct levels is still evolving.

A detailed report from WRAL in North Carolina investigates how high cycle thresholds in PCR testing lead to inflated case numbers. Experts from Oxford and Duke University explain that tests cycled 35 to 40 times can detect dead RNA from old infections rather than active, infectious virus. The report suggests that a threshold of 25 cycles is a more accurate measure of whether a person is actually contagious.

A July 2020 clip from the "This Week in Virology" podcast features Dr. Anthony Fauci discussing PCR cycle thresholds. Fauci states that a cycle threshold of 35 or more makes the chances of the virus being replication-competent "minuscule" and refers to such results as "dead nucleotides." Despite this admission, standard lab results often fail to disclose the cycle count to patients, which is criticized as a lack of transparency.

The FDA and WHO are identified as the entities setting the cycle thresholds for PCR tests, with current recommendations reaching as high as 45 cycles. High cycle counts are blamed for creating false positives, while companies like Abbott Labs are noted for seeing double-digit stock growth linked to the rollout of testing apps and digital health passes.

The North Carolina Department of Health and Human Services confirmed using a PCR test cycle threshold of 37 to signify a positive COVID-19 case. Critics argue that any threshold over 35 results in excessive false positives and picks up viral debris rather than active infections. Lab technicians are accused of being complicit in inflating case numbers by using these high cycle counts to meet political or institutional demands for "positives."

Donald Trump announced that the U.S. has conducted over 100 million COVID-19 tests. Technical experts in Victoria, Australia, confirmed that PCR tests are being run at 35 to 40 amplification cycles, which critics argue is too high and leads to "false positives" by picking up viral fragments that do not indicate active infectivity.

Dr. Barbara Yaffe of Ontario noted that PCR testing in low-prevalence populations can result in false positives 50% of the time. There is ongoing skepticism regarding the high cycle thresholds used in labs, which may detect viral fragments rather than active infection. Concerns are also raised that mass testing serves as a covert method for building a global DNA database.

The late Nobel Prize winner Kary Mullis, inventor of the PCR test, previously warned that the process can be misused to find almost any molecule in a person if amplified enough. The test is a process used to create a large amount of something out of a small sample, rather than a definitive diagnostic tool for illness. High cycle thresholds can lead to the detection of single, non-meaningful molecules, resulting in "false positive" interpretations.

Discrepancies in PCR assay spin cycles are examined, noting that while 30 cycles is the recommended limit to avoid picking up trace non-infectious material, many labs use higher thresholds. Madison, Wisconsin, reportedly uses 45 cycles, while Minnesota labs vary between 35 and 45 cycles across different commercial platforms. Harvard University epidemiologists suggest that positives produced above 30 cycles are unlikely to identify infectious patients.

Professor Carl Hennigan of the Centre for Evidence-Based Medicine explains that high cycle thresholds in PCR testing can lead to positive results in non-infectious individuals. Because the test amplifies small fragments of RNA, people may test positive for up to 78 days after the virus is no longer active. A nurse in Quebec reportedly tested positive eight times despite being asymptomatic, highlighting the flaws in using PCR as a sole metric for public health policy.