Key Points

• The usual seasonal pattern for gastroenteritis outbreaks in Mayotte occurs during the southern hemisphere winter, from July to September.

• The rate of emergency department visits for gastroenteritis among children under 5 has been rising slightly for several weeks but remains low compared to previous epidemic seasons.

• Sales of anti-diarrheal medications in pharmacies and consultations for skin infections at sentinel clinics are higher than the average for previous years.