Viruses

Viruses

Viruses are minute infectious particles that require a host to survive, be it an animal, plant and bacterium. Viruses have a simple structure consisting of DNA or RNA enveloped within a protein capsule. These pesky pathogens cause a variety of human diseases, including AIDs, meningitis and the flu. There is some controversy as to whether viruses are alive, as they require a living host cell to replicate, and cannot do so on their own.
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Why most zombie apocalypse plans fall apart, according to real survival experts

Survival experts and professional preppers give their top tips on how to survive a zombie invasion.
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Chickens in cages in market.

Videos reveal lax biosecurity in New York poultry markets amid bird flu outbreaks

As bird flu cases mount at inner city poultry markets, footage obtained by BBC Science Focus shows workers and the public exposed without recommended biosecurity measures
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A person in bed with a cold blowing their nose.

Does cold weather cause the common cold?

Wrapping up warm won't save you from a sniffle and cough, unfortunately.
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A graphic of micro-organisms.

How can a virus survive in ice for hundreds of years?

From viruses in frozen mummies to anthrax outbreaks in Siberia. What lies beneath the ice is creepy, to say the least.
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Monkeypox virus particles, illustration.

Inside the race to stop a deadly new strain of sexually transmitted monkeypox

New data suggests the virulent strain is now being sexually transmitted.
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A doctor is preparing to vaccinate a patient in the upper arm.

I’ve had COVID, plus all the vaccines – how long will my immunity last?

Is it time for your booster jab?
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Dairy cows on green grass.

Bird flu has now jumped to cows - and their milk. Could humans be next?

The WHO chief scientist says the spread is of “enormous concern”.
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A water colour style image containing lots of read covid viruses.

COVID, 4 years on: 9 most surprising lessons from the pandemic

It’s been exactly four years since the official declaration of the COVID pandemic. What do we know now that we didn’t before?
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A 3D CT scan of a pair of human lungs affected by Covid-19. Patches of yellow and red across the top of each as well as down the centre of one lung show areas of damage done by the virus.

Before we had long COVID, was there long SARS?

A doctor explains the post-viral impact of the respiratory viruses, SARS and COVID-19.
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Instant Genius

Zombie viruses in the Arctic

The world’s polar regions are melting. Beneath the ice lurks all kind of microbes, but how much of a threat do they really present?
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Should we be about ancient viruses and bacteria emerging from melting permafrost due to climate change? © Getty Images

Will melting permafrost release ancient viruses and bacteria?

Climate change is causing permafrost to thaw, and estimates suggest that by 2100 up to two-thirds of Arctic near-surface permafrost will be lost.
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Should we be worried that polio has been detected in the UK? © Getty Images

Should we be worried that polio has been detected in the UK?

A national incident has been declared after the virus was found in a London sewer.
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