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Marty Chuzzle's avatar

Thank you, Jeff, for focusing on Jamie's misleading content. I noticed he has a Substack (controlstudies.substack.com). It has only one post, presumably on scientific Controls. I think he was trying for a world record on the most misspelled words in a single post. It's all very sloppy. Along the way he dismisses atomic theory and genetics as pseudoscience. The post concludes with a hilarious misunderstanding of a short report describing how a rapid antigen test won't give reliable results if you don't follow instructions.

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Marty Chuzzle's avatar

I've been learning about virology laboratory procedures by reading some of the documents Jamie Andrews references. It doesn't appear he reads much or he would have a better understanding of the subject. For example, I've seen him post an excerpt from this document a number of times: "Cytopathic Effects of Viruses Protocols" from the American Society for Microbiology. He highlights this paragraph:

"The rate of CPE appearance is also a characteristic that can be used to help identify viruses. In general the rule of thumb is that a virus is considered slow if CPE appears after 4 to 5 days in cultures inoculated at low MOI, and rapid if CPE appears after 1 to 2 days in cultures inoculated at low MOI. It is important to note that at a high MOI all CPE can occur rapidly. So all decisions about rate of CPE appearance should be based on the lowest MOI that produces CPE."

Jamie says "Here is the American Society of [sic] Microbiology stating that if ANY appearance of CPE is in the culture before day 5, you have a "virus" in the culture."

But it doesn't state that. Not even close!

It does state, elsewhere in the same document:

"Recognizing CPE and using it as a diagnostic tool requires much experience in examining both stained and unstained cultures of many cell types."

"The best knowledge of viral CPE comes from experience. And control uninfected cells should always be observed to distinguish normal cell changes that occur as cells age from cytopathic effect."

I guess Jamie didn't read that part. It makes me wonder how an automated machine (Countess) can take the place of an experienced microbiologist when examining cell cultures for CPE.

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