SARS-CoV-2 Transmission and Prevention in the Era of the Delta Variant

The SARS-CoV-2 Delta variant transmits much more rapidly than prior SARS-CoV-2 viruses. The primary mode of transmission is via short range aerosols that are emitted from the respiratory tract of an index case. There is marked heterogeneity in the spread of this virus, with 10-20% of index cases contributing to 80% of secondary cases while most index cases have no subsequent transmissions. Vaccination, ventilation, masking, eye protection, and rapid case identification with contact tracing and isolation can all reduce transmission of this virus.
Source: Infectious Diseases Clinics of North America - Category: Infectious Diseases Authors: Source Type: research