Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Quarterly incidence of respiratory virus infection in haematology inpatients. For each virus the dashed line indicates the modelled incidence, and the ribbon the 95% confidence interval, allowing for a linear trend before and after the onset of UK national social distancing restrictions, and a step change at this point (shown with a vertical dashed red line). PCR, polymerase chain reaction.
