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Coronavirus Ireland: What exactly is Covid-19 and what will happen next? Biochemistry expert Prof Luke O'Neill explains

Biochemistry expert Prof Luke O'Neill explains how the virus spreads, what can go wrong, and what we can do to avoid exposure

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Up close: What the virus looks like magnified x500,000

Up close: What the virus looks like magnified x500,000

Up close: What the virus looks like magnified x500,000

How can something so tiny be wreaking such havoc? SARS-CoV2 is the name of the virus that causes the new disease Covid-19, named on February 11.

It is so small that 500 million of them would fit on the full stop at the end of this sentence. David and Goliath, except David isn't even as big as an ant when compared to Goliath. And yet look what's happening. Economic turmoil. Cities and towns in quarantine. People not travelling for holidays or weddings. Sporting events cancelled. People who feel sick and who have met someone with the virus keeping themselves in isolation for 14 days. And the fear that the worst is yet to come outside China where it all started. That something so tiny can pack such a punch is a testament to how powerful viruses can be.

What is a virus?


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