The physical space of the MSK Library is scheduled to close to visitors on Friday, May 17, 2024. Please visit this guide for more information.
The physical space of the MSK Library is scheduled to close to visitors on Friday, May 17, 2024. Please visit this guide for more information.
| COVID-19 U.S. Trends | Week Ending March 2, 2024 |
|---|---|
| Test Positivity (past week) | 6.5% |
| % Change in Test Positivity (prior week) | -1.0% |
| Test Positivity (past 2 weeks) | 7.9% |
| Test Positivity (past 4 weeks) | 8.9% |
| COVID-19 Hospital Admissions (past week) | 15,141 |
| % Change in COVID-19 Hospital Admissions (prior week) | -13.6% |
| COVID-19 Hospital Admissions Per 100,000 (past week) | 4.56 |
| % Inpatient Beds Occupied by COVID-19 Patients (past week) | 2.1% |
| % ICU Beds Occupied by COVID-19 Patients (past week) | 2.1% |
| % of ED Visits with Diagnosed COVID-19 | 1.2% |
| % Change in COVID-19 ED Visits (prior week) | -21.2% |
| % COVID-19 Deaths (past week) | 2.2% |
| % Change in COVID-19 Deaths (prior week) | 0% |
As of May 11, 2023, COVID-19 Community Levels (CCLs) and COVID-19 Community Transmission Levels are no longer calculatable. The associated visualizations have been removed from COVID Data Tracker. The “COVID-19 Integrated County View” tab has been renamed “COVID-19 Vaccinations by County.”
The U.S. National Wastewater Surveillance System (NWSS) monitors COVID-19 viral activity levels across the U.S. Wastewater (sewage) can be tested to detect traces of infectious diseases circulating in a community, even if people don’t have symptoms. You can use these data as an early warning that levels of infections may be increasing or decreasing in your community.
NOTE: Testing has resumed for commercial contract wastewater sites (about 350 sites) that have had a temporary delay since September 15, 2023. Site-level data will be available two weeks after a site resumes testing.
Last Updated: March 8, 2024
This map shows current viral activity levels of SARS-COV-2 in wastewater by state.
NOTE: Testing has resumed for commercial contract wastewater sites (about 350 sites) that have had a temporary delay since September 15, 2023. Once sites have six weeks of data, the wastewater viral activity levels will be displayed.
The CDC’s National Wastewater Surveillance System (NWSS) provides the public health infrastructure to monitor infectious diseases through wastewater across the country. Wastewater monitoring data can help local public health agencies identify outbreak trends early, direct prevention efforts to where they are most needed, and provide additional insight into disease spread that complements other public health surveillance data. Health departments, community leaders, and individuals can use wastewater monitoring data to make decisions about how best to protect their community.
As of May 11, genomic surveillance data will be reported biweekly, based on the availability of positive test specimens. You can find archived genomic surveillance data at data.cdc.gov. The CDC provides updated variant proportions for weighted estimates and Nowcast estimates every other week on Friday.
CDC provides estimates of variant proportions in two ways: weighted estimates and Nowcast estimates.
Weighted estimates (provided for all weeks except the most recent three weeks) are variant proportions that are based on empirical (observed) genomic sequencing data. These estimates are not available for the most recent weeks because of the time it takes to generate the unweighted data, including sample collection, specimen treatment, shipping, analysis, and upload into public databases.
Nowcast estimates (provided for the most recent three weeks when the "Nowcast on" option is selected below) are model-based projections of variant proportions for the most recent weeks to enable timely public health action. CDC uses the Nowcast to forecast variant proportions before the weighted estimates are available for a given week.
CDC provides updated variant proportions for weighted estimates and Nowcast estimates every other week on Friday.
This chart shows the average relative proportions of SARS-COV-2 virus variants in wastewater at the national level. Variants constituting less than 5% abundance are categorized as “Other.”
The CDC’s National Wastewater Surveillance System (NWSS) provides the public health infrastructure to monitor infectious diseases through wastewater across the country. Wastewater monitoring data can help local public health agencies identify outbreak trends early, direct prevention efforts to where they are most needed, and provide additional insight into disease spread that complements other public health surveillance data. Health departments, community leaders, and individuals can use wastewater monitoring data to make decisions about how best to protect their community.