Key points

• In France, with the exception of Mayenne, French Guiana, and Mayotte

  • New upward trend in SARS-CoV-2 transmission, but viral circulation remains at a low level

  • The weekly number of reported clusters has remained stable over the past 5 weeks

• In Mayenne

  • Increase in the number of new cases and positive test rates; 1 cluster with community spread

  • Measures are being strengthened in this department. Population-wide testing is underway

• In French Guiana, increased circulation of SARS-CoV-2 at a high level with community transmission

• In Mayotte, the epidemic is subsiding but SARS-CoV-2 circulation remains at a high level

• 6.7% of the population of metropolitan France infected with SARS-CoV-2 by mid-April 2020 (4,368,000 people) (seroprevalence survey)

• Decrease in the consistent adoption of preventive measures (maintaining a distance of at least 1 m, greeting without shaking hands, avoiding hugs), stabilization of hygiene measures and mask-wearing.