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Debora Mackenzie

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Organisation for the Prohibition of Chemical Weapons

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Novichok attack tests the world’s chemical weapons treaty

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Exclusive: Other countries could have made ‘Russian’ nerve agent

Chickens for sale

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Flu is evolving in new and unpredictable ways in China鈥檚 poultry

A hospital full of people with flu

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Pandemics past: Seven times flu has become a mass killer

flu virus

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The epidemic on the way: Why winter flu is so bad this year

flu jabs

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Stopping the spread: What you can do to prevent flu

racks of eggs

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Jab in the dark: Why we don鈥檛 have a universal flu vaccine

schoolroom

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Waiting for the big one: A new flu pandemic is a matter of time

Number 8

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Why a nasty surprise lurks 100 years on from the lethal 1918 flu

CDC

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How Trump鈥檚鈥榖an鈥� on science words could harm public health

An ill woman sneezing

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Bad colds may have delayed this year’s flu epidemic in UK

Front cover of Iranian newspaper reporting Trump's decision

Humans

Trump鈥檚 U-turn may see Iran join North Korea as a nuclear state