Articles on Viral infections

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As long-frozen parts of Earth thaw, it’s inevitable that old viruses will be unearthed. What risks do they have to humans? Gerolf Nikolay/Flickr

Ancient viruses sound scary, but there’s no need to panic

You may have seen recently that scientists recovered and “revived” a giant virus from Siberian permafrost (frozen soil) that dates back 30,000 years. The researchers raised concerns that drilling in the…
A primary carrier of the Chikungunya virus, the Asian tiger mosquito (Aedes albopictus) could easily hop to mainland Australia from Torres Strait islands. Camponotus Vagus

Explainer: the chikungunya virus and its risk to Australia

Chikungunya is a virus transmitted to people by mosquitoes; it usually causes a non-fatal but debilitating illness. Despite thousands of people being infected each year in Africa, Asia and Melanesia, chikungunya…

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