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The Guardian - UK
The Guardian - UK
Entertainment
Mark Honigsbaum

The Age of Diagnosis by Suzanne O’Sullivan review – are we really getting sicker?

A stethoscope and blood pressure monitor on a blue background.
‘Diagnosis is not as definitive as we think.’ Photograph: Valentyna Yeltsova/Getty Images

For many years, people living in Lyme, Connecticut, were plagued by mysterious flu-like symptoms, rashes and joint pains. Patients were convinced that their symptoms had something to do with the deer that roamed the nearby woods and the ticks they frequently found clinging to their clothes. But because the symptoms were so ill-defined and there was no treatment, physicians dismissed the symptoms as psychosomatic.

Then in 1975, alarmed by the exceptionally high rates of juvenile arthritis in Lyme, the Connecticut health department decided to investigate. It took seven years but eventually, in 1982, they identified a spiral-shaped bacterium in the midgut of deer ticks that was also present in the blood of sick people. All it took to spark the disorder was for an infected tick to latch on to an unsuspecting victim and inject the bacterium under their skin.

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