Evolution of the incidence of COVID-19 during the first five waves in residents and professionals of nursing homes in Normandy, France.

Background: Older adults living in nursing homes (NH) paid a heavy price to the COVID-19 pandemic, despite early and often drastic prevention measures.

Aims: To study the characteristics and the impact of the pandemic on NH residents and professionals over 2 years.

Methods: Cross-sectional study of COVID-19 clusters among residents and/or professionals in NH, from March 2020 to February 2022, in Normandy, France.

A description of a hepatitis A outbreak in men who have sex with men and public health measures implemented in Seine-Maritime department, Normandy, France, 2017.

Background: In 2016-2017, a European-wide circulation of genotype IA hepatitis A virus was responsible for hepatitis A outbreaks in men who have sex with men (MSM). This study aimed to describe the outbreak investigation in Seine-Maritime department (France) and the control measures implemented accordingly.

Methods: Outbreak description used data from mandatory reporting and enhanced surveillance of male cases.

The role of dependency in a norovirus outbreak in a nursing home.

Purpose: The objectives of the epidemiological investigation were to describe factors associated with prolonged transmission of acute gastroenteritis in a nursing home during a norovirus outbreak.

Methods: A retrospective cohort study was conducted among residents (N = 89) and staff members (N = 86) of the nursing home. Outbreak description was performed in both residents and staff members.