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<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Microbes, Bacteria, Viruses | smithsonianmag.com</title><link>https://www.smithsonianmag.com/rss/tag/microbes-bacteria-viruses/</link><description>RSS feed for Microbes, Bacteria, Viruses</description><atom:link href="https://www.smithsonianmag.com/rss/tag/microbes-bacteria-viruses/" rel="self"/><language>en</language><lastBuildDate>Mon, 24 Aug 2026 16:08:42 +0000</lastBuildDate><item><title>Scientists Used A.I. to Design New Viruses. The Technology Could Be a Boon for Medicine, but Experts Worry About Harmful Pathogens</title><link>https://www.smithsonianmag.com/smart-news/scientists-used-ai-too-design-new-viruses-the-technology-could-be-a-boon-for-medicine-but-experts-worry-about-harmful-pathogens-180989336/</link><description>The findings represent the first genomes, or complete genetic instruction books, designed entirely with generative A.I. The resulting viruses attack only bacteria, which could one day help overcome the problem of antibiotic-resistant microbes</description><pubDate>Mon, 24 Aug 2026 16:08:42 +0000</pubDate><guid>https://www.smithsonianmag.com/smart-news/scientists-used-ai-too-design-new-viruses-the-technology-could-be-a-boon-for-medicine-but-experts-worry-about-harmful-pathogens-180989336/</guid><enclosure length="4182491" type="image/png" url="https://th-thumbnailer.cdn-si-edu.com/Fntxua-40FPjZNgcqHy9SUT-UTg=/420x240/filters:focal(1088x710:1089x711)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/37/31/37310244-a744-4aff-883f-644ac47266a4/brianhie_image_2024-3.png"/></item><item><title>Covid-19 Can Reawaken Dormant Viruses in the Body, Which Might Worsen Symptoms of the Respiratory Illness, Study Suggests</title><link>https://www.smithsonianmag.com/smart-news/covid-19-can-reawaken-dormant-viruses-in-the-body-which-might-worsen-symptoms-of-the-respiratory-illness-study-suggests-180989322/</link><description>Most people carry a sleeping virus in their bodies, such as the herpesvirus that causes mononucleosis, or the “kissing disease.” A new study hints that Covid-19 triggers their reactivation, which could worsen symptoms and increase the risk of long Covid</description><pubDate>Fri, 14 Aug 2026 20:06:16 +0000</pubDate><guid>https://www.smithsonianmag.com/smart-news/covid-19-can-reawaken-dormant-viruses-in-the-body-which-might-worsen-symptoms-of-the-respiratory-illness-study-suggests-180989322/</guid><enclosure length="261768" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/uKeIpfGF-bbPiM-zxZ_kSibHMFI=/420x240/filters:focal(400x312:401x313)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/aa/6b/aa6baee5-7e62-4341-8fb8-6a36ee00754b/49535193876_8ec9df4dc7_c.jpg"/></item><item><title>For the First Time, an mRNA Flu Shot Will Be Available to Some People in the United States. Here's What You Should Know</title><link>https://www.smithsonianmag.com/smart-news/for-the-first-time-an-mrna-flu-shot-will-be-available-to-some-people-in-the-united-states-heres-what-you-should-know-180989305/</link><description>The Food and Drug Administration just approved the new type of flu vaccine for adults ages 50 and older. It relies on the same technology as many Covid-19 jabs. However, it’s unclear whether insurance companies will pay for the novel flu shot</description><pubDate>Tue, 11 Aug 2026 15:41:54 +0000</pubDate><guid>https://www.smithsonianmag.com/smart-news/for-the-first-time-an-mrna-flu-shot-will-be-available-to-some-people-in-the-united-states-heres-what-you-should-know-180989305/</guid><enclosure length="22029540" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/32lQBkuWOmHI8KclHrOJQpUwy68=/420x240/filters:focal(4330x2887:4331x2888)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/0a/d1/0ad11323-828c-47b2-a34d-f8be27a5befe/flu-shot-older.jpg"/></item><item><title>Why Does Antarctica's Blood Falls Spew Ruby Red Water? Microbes Offer New Clues About the Geologic Feature's Ancient Origins</title><link>https://www.smithsonianmag.com/smart-news/why-does-antarcticas-blood-falls-spew-ruby-red-water-microbes-offer-new-clues-about-the-geologic-features-ancient-origins-180989271/</link><description>The falls contain saltwater rich with iron, which oxidizes and turns red when exposed to air. A new study provides further evidence that the brine probably comes from ocean water trapped when flood waters retreated millions of years ago</description><pubDate>Thu, 06 Aug 2026 20:26:01 +0000</pubDate><guid>https://www.smithsonianmag.com/smart-news/why-does-antarcticas-blood-falls-spew-ruby-red-water-microbes-offer-new-clues-about-the-geologic-features-ancient-origins-180989271/</guid><enclosure length="8245138" type="image/png" url="https://th-thumbnailer.cdn-si-edu.com/h4-L6XBoOXzWmiVIUG4MtyJlNps=/420x240/filters:focal(1480x987:1481x988)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/ad/ff/adffb2ed-155a-4aa1-b7bb-f82917f559ca/screenshot_2026-08-05_at_174527.png"/></item><item><title>A New Study Points to Two Origins of Life on Earth by Tracing Early Chemical Reactions in Single-Celled Organisms</title><link>https://www.smithsonianmag.com/science-nature/a-new-study-points-to-two-origins-of-life-on-earth-by-tracing-early-chemical-reactions-in-single-celled-organisms-180989260/</link><description>The work challenges the assumption that all life descended from one free-living cell. Instead, it suggests that two microbial lineages, the bacteria and archaea, evolved independently from a primordial, nonliving ancestor</description><pubDate>Wed, 05 Aug 2026 19:13:11 +0000</pubDate><guid>https://www.smithsonianmag.com/science-nature/a-new-study-points-to-two-origins-of-life-on-earth-by-tracing-early-chemical-reactions-in-single-celled-organisms-180989260/</guid><enclosure length="377890" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/5-2fpkfL0dbWtQfbQ1MlVjzJcbo=/420x240/filters:focal(252x438:253x439)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/e3/24/e324213d-fa26-4d47-8d3d-b1b644073b7c/ezgif-5b106ff19bd5d795.jpg"/></item><item><title>Smallpox DNA Hidden for Centuries in Mummies Found in Chile Suggests European Colonists Brought the Virus to the Americas</title><link>https://www.smithsonianmag.com/smart-news/smallpox-dna-hidden-for-centuries-in-mummies-found-in-chile-suggests-european-colonists-brought-the-virus-to-the-americas-180989244/</link><description>Researchers say they found the first direct, molecular proof of the deadly trajectory the virus took</description><pubDate>Mon, 03 Aug 2026 15:27:18 +0000</pubDate><guid>https://www.smithsonianmag.com/smart-news/smallpox-dna-hidden-for-centuries-in-mummies-found-in-chile-suggests-european-colonists-brought-the-virus-to-the-americas-180989244/</guid><enclosure length="704553" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/e2jcwTfb5-75M_er-g1igHN9kQM=/420x240/filters:focal(600x451:601x452)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/1b/e5/1be572c0-d1bf-4750-ac39-415760a37adb/inca-spanish_confrontation.jpeg"/></item><item><title>Smallpox Scabs That British Doctors Used to Inoculate Patients May Have Introduced the Deadly Disease to Australia, New Research Suggests</title><link>https://www.smithsonianmag.com/smart-news/smallpox-scabs-that-british-doctors-used-to-inoculate-patients-may-have-introduced-the-deadly-disease-to-australia-new-research-suggests-180989093/</link><description>Two new studies find that British colonists arriving via ship in the late 18th century likely introduced smallpox, which devastated Aboriginal communities far more than previously known</description><pubDate>Thu, 09 Jul 2026 14:14:36 +0000</pubDate><guid>https://www.smithsonianmag.com/smart-news/smallpox-scabs-that-british-doctors-used-to-inoculate-patients-may-have-introduced-the-deadly-disease-to-australia-new-research-suggests-180989093/</guid><enclosure length="4283693" type="image/jpeg" url="https://th-thumbnailer.cdn-si-edu.com/s9WftgB_FZr5_QUrZNfz0WIXrPs=/420x240/filters:focal(1800x1354:1801x1355)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/76/dd/76dd859d-575c-497e-8699-faebde8889a9/slnsw_fl3268272.jpg"/></item></channel></rss>