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    <title>Peter Friebe, PhD</title>
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    <description>Science writing on biotechnology, diagnostics, genomics, and medicine.</description>
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    <lastBuildDate>Thu, 02 Jul 2026 20:37:29 GMT</lastBuildDate>
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    <title>Wastewater Surveillance: An Early Warning System for Infectious Disease</title>
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    <pubDate>Wed, 27 May 2026 00:00:00 GMT</pubDate>
    <description><![CDATA[Wastewater may not sound like a high-tech public health tool, but it can reveal important signals about infectious diseases spreading through a community. My latest article explains how wastewater surveillance works, why it became widely known during COVID-19, and how it can help monitor pathogens such as SARS-CoV-2, influenza, RSV, mpox, polio, and others. Unlike individual testing, wastewater surveillance looks at population-level signals. It cannot diagnose a single person, but it can help public health officials detect trends earlier. And in infectious disease, earlier signals can make all the difference. Written for a general audience. No science background needed, just curiosity.]]></description>
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    <title>How Do We Actually Amplify DNA?</title>
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    <pubDate>Fri, 01 May 2026 00:00:00 GMT</pubDate>
    <description><![CDATA[During COVID-19, almost everyone heard about PCR. But what does PCR actually do? My new article explains how DNA and RNA amplification works, from PCR to newer isothermal methods that may help bring molecular testing closer to the patient. A companion piece to my earlier article on DNA sequencing. Written for a general audience. No science background needed, just curiosity.]]></description>
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    <title>Understanding Hantavirus</title>
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    <pubDate>Fri, 01 May 2026 00:00:00 GMT</pubDate>
    <description><![CDATA[Hantaviruses are found around the world, but most people know little about them until an unusual outbreak on a cruise ship brings them into focus. I wrote a brief overview of what hantaviruses are, why this outbreak is unusual, and why health authorities still consider the broader public risk low. Written for a general audience. No science background needed, just curiosity.]]></description>
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