The number of cyclosporiasis cases in Michigan nearly doubled in the final week of June, reaching 572, as a multi-state outbreak of the parasitic intestinal infection continued to widen across the United States. State health officials reported the sharp rise from 170 cases just days earlier, while the US Centers for Disease Control and Prevention (CDC) logged 145 laboratory-confirmed infections nationally as of 1 July, a figure that lags behind state-level counts and signals rapid spread. At least 20 people have been hospitalised, though no deaths have been recorded. Cases have now been detected in 17 states, with Ohio (177) and North Carolina (110) also reporting elevated numbers.

The Cyclospora cayetanensis parasite is transmitted through the consumption of food or water contaminated with faeces, most often fresh produce such as leafy greens, herbs, and berries. Symptoms typically emerge about a week after exposure and include profuse, watery diarrhoea, severe abdominal cramping, nausea, fatigue, and weight loss; the illness can persist for more than a month if untreated. The recommended treatment is a course of sulfa antibiotics, and the principal complication driving emergency visits is profound dehydration. US federal and state investigators are examining several clusters but have not yet identified a single contaminated product or supplier linking all cases. Past domestic outbreaks have been traced to bagged salad mixes, snow peas, and raspberries.

Across the Atlantic, the European Food Safety Authority and the European Centre for Disease Prevention and Control are investigating a separate outbreak of Salmonella Stanley that has sickened 106 people in 14 countries, predominantly children and young adults. At least 49 patients have required hospital care. Microbiological evidence from Germany and Lithuania points to instant noodles—specifically chicken-flavoured and spicy chicken-flavoured varieties—produced by a Ukrainian manufacturer. Reeva Foods, the company that markets the noodles in the Baltic region, has recalled one batch and tightened testing protocols. The agencies have not yet confirmed the noodles as the definitive source, and the investigation remains ongoing.

In a parallel development, a research consortium led by the University of Bergen and the Norwegian Research Center has licensed a novel vaccine technology targeting enterotoxigenic Escherichia coli (ETEC), a leading bacterial cause of severe diarrhoea in low- and middle-income countries, to the French manufacturer Valneva. The approach, which focuses on a toxin long considered a barrier to vaccine development, has shown the ability to elicit strong antibody responses in early-stage work, but it has not yet entered human clinical trials. The next factual milestones to watch are the identification of a common food vehicle in the US cyclospora outbreak and the final determination by European authorities on whether the instant noodles are the confirmed source of the salmonella cluster.