Articles on Viruses

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In the aquatic or frozen habitats of the North and South Poles, life is dominated by single-celled micro-organisms. Giant viruses sit at the top of the food pyramid. (Unsplash/Henrique Setim)

The giant viruses that orchestrate life in the polar regions

Long overlooked because of their size, giant viruses are now redefining the frontiers of microbiology.
The hantavirus-stricken cruise ship Hondius is seen at anchor after arriving at the port of Granadilla in Tenerife, Canary Islands, Spain on May 10, 2026. (AP Photo/Manu Fernandez) 

Hantavirus: A cruise ship, a deer mouse and the fictional line between human and animal health

The hantavirus outbreak that began on a cruise ship is a reminder of something we keep having to relearn: When humans push into ecosystems they don’t normally inhabit, they are exposed to viruses.
The cruise ship MV Hondius sits anchored off Praia, the capital of Cape Verde, on May 5, 2026, before setting course for Spain on May 6. AFP via Getty Images

Health authorities work to contain cruise ship hantavirus outbreak

Hantavirus cases are usually rare, but the strain in the outbreak is the only one thought to be transmitted from person to person.
Model of bacteriophages. These are viruses that multiply inside bacteria and cause their death. In some cases they are used in the fight against bacteria instead of antibiotics. shoma81/Shutterstock

Bacteriophages: meet the viruses that hunt superbugs

As antibiotic resistance grows, scientists are turning to bacteriophages, viruses that target harmful bacteria without wiping out beneficial microbes.

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