Key Points

Hepatitis A Outbreak: 12 reports of HAV infection were received by the Centre-Val de Loire Regional Health Agency (ARS) between June 28, 2017, and July 8, 2017, including 8 involving children (ages 4 to 8) and 4 involving adults. Among these cases, 10 attended the same preschool and elementary school with an adjacent recreation center in a rural town in the Indre department. Vaccination of family contacts of the cases was organized on Friday, July 7. Since the onset dates of symptoms were close together, the hypothesis of a common source was considered most likely. A questionnaire specifically gathering information on attendance at local events as well as food consumption and places of purchase was completed for all cases and allowed for the consideration of various hypotheses regarding transmission. Ultimately, the common source could not be identified.

Enterovirus MeningitisIn 2017, emergency departments participating in the Oscour surveillance system of Santé Publique France began observing a gradual increase in the number of emergency department visits for viral meningitis starting in week 16 (April 17–23), with a marked increase in week 22 (May 29–June 4) and subsequent weeks. During the month of June, the weekly number of cases was higher than that observed during the same period in the two previous years, suggesting a potentially more severe enterovirus meningitis epidemic this year. The summer peak is usually observed in late June–early July (week 26 or 27), as shown in Figures 1 and 2.