Epidemiology of Kawasaki disease in Chandigarh, India (2020–2024): COVID-19 pandemic-related decline and post-pandemic resurgence

BACKGROUND: Kawasaki disease is the leading cause of acquired heart disease in children worldwide. Previous studies from Chandigarh, India, documented a rising incidence until 2019. The COVID-19 pandemic, with its infection-control measures and emergence of multisystem inflammatory syndrome in children, disrupted established epidemiological trends. We aimed to evaluate the impact of the pandemic on incidence, clinical features, and coronary outcomes in children with Kawasaki disease in the Union Territory of Chandigarh. METHODS: This study was conducted at the tertiary care teaching institute in North-West India, from January 2020 to December 2024. Demographic, clinical, laboratory, and echocardiographic data were collected. Population estimates were derived from national census projections, and annual incidence rates were calculated for children