DNA Deletion Makes Swedish Chlamydia 'Invisible'

Scientists are aiming to improve the diagnosis of chlamydia, the most common cause of sexually transmitted infection globally. Researchers investigated a genetic deletion that matches the region targeted by the most widely used diagnostic tests, rendering them useless to detect infection by one strain of chlamydia, originating in Sweden. The team have identified regions that are more stable and suggest that these regions should be targeted by future diagnostic tests.

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