Johns Hopkins Researchers Retrace COVID-19’s Introduction, Impact in D.C. Region

An effort by scientists from across Johns Hopkins University and Health System to sequence the genome of SARS-CoV-2, the virus causing COVID-19, has produced a study characterizing the early introduction of the virus into the Washington, D.C., metropolitan area.

Among several findings, the study points to multiple entries of the virus into the region but similar clinical presentation, an indication that, despite small genetic differences, circulating viruses are likely causing identical disease.