Funding for this research was provided by:
Centers for Disease Control and Prevention (NU17CE002724)
Received: 3 July 2021
Accepted: 16 August 2021
First Online: 30 August 2021
: This study was approved by the Institutional Review Boards of the Boston University Medical Campus and the Massachusetts Department of Public Health.
: Not applicable.
: The authors declare that they have no competing interests.