The Declaration of the National Emergency in Child and Adolescent Mental Health: It Takes a Village.

Recognition of the high prevalence of children's mental health conditions and challenges to accessing needed care faced by children and their families have been long-standing concerns, emerging well before the onset of the COVID-19 pandemic. Global data examining the prevalence of at least one mental health and/or substance-use disorder for 2516 million people aged 5 to 24 years in 2019 found that at least 293 million people were affected by at least one mental health disorder and 31 million affected by a substance-use disorder.