Three covid rapid antigen tests displaying (left to right) invalid, positive, and negative results.
| 7 min read
Lateral flow tests for COVID-19 can be very accurate and specific when used as directed, but introducing acidic fluids can cause the tests’ detecting antibodies to clump, which may read as a positive result.

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Illustration of man receiving a COVID test.

Opinion: What COVID-19 Has Taught Us About the Importance of Testing

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Diabetes Testing Pioneer Helen Free Dies at 98

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Olink® Reveal: Accessible NGS-based proteomics for every lab

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Discover the history, mechanics, and potential of PCR.

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A greyscale image of cells dividing.
March 2025, Issue 1

How Do Embryos Know How Fast to Develop

In mammals, intracellular clocks begin to tick within days of fertilization.

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Discover the history, mechanics, and potential of PCR.

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