Volume 28, Number 10—October 2022
Synopsis
Seasonality of Common Human Coronaviruses, United States, 2014–20211
Figure 1

Figure 1. Total tests and percentage positivity of 4 common HCoVs from weekly aggregated data submitted to the National Respiratory and Enteric Virus Surveillance System, United States, July 2014–November 2021. A) Total specimens tested for all 4 HCoV types. B) Percentage positivity of the 4 HCoV types by week. C) Percentage positivity of the common alphacoronaviruses. D) Percentage positivity of the common betacoronaviruses. HCoVs, human coronaviruses.
1Preliminary results from this study were presented at the IDWeek Virtual Conference 2021,
September 29–October 3, 2021.