One kiss 'shares 80 million bugs'

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A single 10-second kiss can transfer as many as 80 million bacteria, according to Dutch scientists.

They monitored the kissing behaviour of 21 couples and found those who kissed nine times a day were most likely to share salivary bugs.

Studies suggest the mouth is home to more than 700 different types of bacteria - but the report reveals some are exchanged more easily than others.

The research is published in the journal Microbiome.

http://www.bbc.co.uk/news/health-30055646

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