Usage History of 'chlamydia'

The following chart shows how frequently 'chlamydia' appeared in printed materials over time. For example, the word 'chlamydia' occurred 2 times in books in 1773 and 21,105 times in 2008. From 1773 to 2008, the word 'chlamydia' was used a total of 538,163 times in books scanned by Google. See Reference: Google Ngram project.

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