Articles on Viruses

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Biosecurity warning signs are seen on a locked gate at a commercial poultry farm in Abbotsford, B.C., in November 2024. THE CANADIAN PRESS/Darryl Dyck

How does a bird virus infect a person? Surprising findings from B.C.’s human case of H5N1 avian flu

The human avian flu case in B.C. demonstrates there is much to learn about the complex factors that may result in a virus developing the ability to infect humans.
Humans can be infected by many viruses, including the Ebola virus pictured here. However, the most diverse viruses are those that infect bacteria. (CDC/Cynthia Goldsmith/Wikimedia Commons)

How bacteria hijack viruses to shuffle their own DNA

Bacteria have transformed some viruses — now called gene-transfer agents — into a means of exchanging genetic material among themselves.
Varicella zoster virus, also known as human herpesvirus 3, causes chickenpox and shingles. BSIP/Universal Images Group via Getty Images

Shingles can cause severe chronic pain – new research on how exosomes alter neurons offers pathways to treatment

The pain of post-herpetic neuralgia can drive people to the point of suicide. Researchers are getting closer to pinpointing its cause – which may extend to other forms of neuropathy.
The Oropouche virus is no longer an infection confined to the Amazon and is a cause for concern throughout the Americas. Foto: Wikipedia

Recurring risk: Like Zika, Oropouche virus can also affect the brains of unborn babies

As cases surged in 2024 in Brazil, reports also emerged of deaths and babies born with microcephaly and other congenital malformations linked to Oropouche virus infection.
You don’t want a lone star tick, or any tick, to get to this point if you can help it. CDC via Smith Collection/Gado/Getty Images

How to avoid tick bites in your yard or while hiking in the woods, and what to do if one starts feasting on you

A tick disease researcher explains the risks and how she avoids bringing home ticks from both work and walking her dog in the woods. Lint rollers, tick checks and some types of chemicals play a role.

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