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Discover the latest health news, scientific discoveries and big ideas about the human body and treating diseases, covid-19, diet, fitness, exercise, wellness and how to live a healthy life.

An illustration of coronavirus particles

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Does a high viral load or infectious dose make covid-19 worse?

Does being exposed to more virus particles mean you’ll develop more severe illness? Data suggests the relationship between infection and severity may be complex

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ICU ventilator

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Which covid-19 patients will get a ventilator if there’s a shortage?

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Hepatitis C infection rates are being cut by testing and treatment

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How long does coronavirus stay on surfaces and can they infect you?

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Eating too much salt seems to impair body’s ability to fight bacteria

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There are constructive steps we can all take to fight the coronavirus

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Swab test

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How does coronavirus testing work and will we have a home test soon?

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ICU bed

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UK has enough intensive care units for coronavirus, expert predicts

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Can you catch the coronavirus twice? We don’t know yet

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How to fight infection by turning back your immune system’s clock

Your immune system ages too, weakening as you get older and making you more susceptible to infections. Fortunately, we are discovering plenty of things you can do to turn back the clock and stay healthy

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We haven’t identified any new drugs for severe covid-19 cases yet

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Why US society is so vulnerable to the coronavirus pandemic

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You could be spreading the coronavirus without realising you’ve got it

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The bacteria in a mother’s gut may protect babies from food allergies

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