Psychosocial and health behavioural impacts of COVID-19 pandemic on adults in the USA: Protocol for a longitudinal cohort study Hoda Badr, Abiodun Oluyomi, Maral Adel Fahmideh, Syed Ahsan Raza, Xiaotao Zhang, Ola El-Mubasher, Christopher Amos Topic(s) Community-Specific Health Disparities Program Community Engagement Alliance Regional Teams