Annual Summary of Giardia in Scotland, 2018

​In 2018, HPS received 199 laboratory reports of Giardia (Figure 1). This represents a decrease of 70 reports (26.0%) when compared with 2017 (269 reports). This is the first decrease in laboratory reports following a generally increasing trend between 2014 and 2017. Some of the increase in reports observed over those years is likely to be due to changes in the diagnostic techniques used in some of the laboratories.