Swedish health officials, aka Folkhalsomyndigheten have reported an increase in the parasitic infection, cryptosporidiosis in recent weeks, particularly in November.
About half of the country’s regions have reported cases in all ages, but primarily in adults. Most cases are seen in the Stockholm region.
The Public Health Agency and the National Food Agency have started an outbreak investigation to identify if there are one or more common sources of infection that are unknown so far. As part of the investigation, cases are interviewed about what they ate and drank before they became ill.

