But in reality, we're more likely to get sick by shaking hands throughout the day than by kissing.

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When it comes to informing the employer about a sick day, some workers said they bypassed a phone call to the boss by using digital communications.

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It hopes its genetic tests will one day save lives by spotting people at risk years before they get sick.

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On that day Litvinenko fell sick, suffering (it eventually turned out) the effects of poisoning by polonium, a rare radioactive substance that killed him three weeks later.

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By day three I was craving solid food, and had started to get a little bit sick of the routine.

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