Pandemic viruses can spread around the world. Viruses invade our bodies destroying cells and infecting others, but how do they do it?
- Viruses are deadly, contagious and can spread easily around the world.
- They invade our bodies destroying cells and reproducing.
- Modern travel, urbanisation and intensive farming make us more vulnerable to the spread of viruses.
A deadly contagious virus can race around the world at a ferocious speed killing millions of people.
Diseases such as lethal forms of flu, smallpox, SARS and HIV.
Viruses are the ultimate parasite.
Dr Andrew Simor, Sunnybrook Hospital, Toronto – "Viruses are really like the Trojan horse, because they inject themselves into human …
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