At a glance
- See how severe respiratory illnesses are by reviewing the latest data on hospitalizations and deaths caused by respiratory viruses.
- Understand how illness severity is changing by tracking trends in your state and nationwide.
- Discover why these numbers matter; understanding the impact helps you make informed decisions to protect yourself and your family.
Hospitalization numbers
This website displays two sources of hospitalization data. The first source is the CDC's National Healthcare Safety Network (NHSN) and the second is CDC's Respiratory Virus Hospitalization Surveillance Network (RESP-NET).
Hospital admission levels
CDC monitors the number of hospital admissions for COVID-19, influenza (flu), and RSV. The color bar at the top of the map shows the hospitalization level associated with each color. Click on the tab for COVID-19, influenza, or RSV to see the levels for each disease. Hover over a state to see the levels and additional details. Refer to data notes for more information about data sources.
Hospitalization rates reported by hospitals
CDC tracks the weekly hospitalization rate of respiratory virus-associated hospitalizations per 100,000 people reported to CDC's National Healthcare Safety Network (NHSN).
Click the drop down at the top of the chart to select the geographic area you are interested in. You can move your mouse over the graph to view additional details. Information about each respiratory illness is in a different color. Open circles indicate fewer than 80% of hospitals in that area have reported illness numbers.
Preliminary data are shaded in gray. Refer to data notes for more information about data sources.
Hospitalization rates from a network of hospitals
Below, you'll find the weekly hospitalization rates of respiratory virus-associated hospitalizations per 100,000 people from RESP-NET.
Click the box at the top of the chart to see information about different states or territories. Information about each respiratory illness is in a different color. Move your mouse over the chart and more information for each week will appear. Because reporting may be delayed, models estimate what rates would be if all data were complete. Modeled median estimates are shown with dashed lines. Refer to data notes for more about data sources.
Viral respiratory deaths in the United States
The chart below shows the weekly percentages of total deaths associated with COVID-19, influenza (flu), and RSV. Each respiratory illness is in a different color. Move your mouse over the chart and more information for each week will appear. Data from some recent weeks may be incomplete because of reporting delays; these weeks are shaded gray. For more information about the data source, refer to the data notes.
Data notes
- SOURCE: National Healthcare Safety Network (NHSN)
- Data source description: As of November 1, 2024, Hospital Respiratory Data (HRD; formerly Respiratory Pathogen, Hospital Capacity, and Supply data or 'COVID-19 hospital data') are required to be reported to HHS through CDC's NHSN based on updated requirements from the Centers for Medicare and Medicaid Services (CMS). NHSN monitors national and local trends in healthcare system stress and capacity for all acute care and critical access hospitals in the United States. Data reported by hospitals to NHSN represent aggregated counts and include metrics capturing information specific to hospital capacity, occupancy, hospitalizations, and admissions. Find more information about reporting to NHSN.
- Data quality and timeliness: CDC reviews reported data for completeness and errors and works with partners to update the data as needed. Data for the most recent two weeks may be affected by potential reporting delays; caution should be taken when interpreting these numbers.
- Metrics and inclusion criteria: Many hospital types, including acute care and critical access hospitals, are included in the hospitalization rate and level calculations displayed on this page. Psychiatric, rehabilitation, and religious non-medical hospital types are excluded from calculations. Hospitals that report hospital admissions data for the entire week to NHSN during a given reporting week of Sunday through Saturday, are included in the jurisdiction admissions rate calculations and the accompanying visualizations.
- Respiratory virus-associated hospitalization rates are calculated as the total number of new hospital admissions reported to NHSN for a given reporting week (Sunday – Saturday) divided by the total population for a given geography (per 100,000 people) according to the U.S. Census 2023 population estimates.
- Hospital admission levels are determined based on the respiratory virus-associated hospitalization rates. The map shows the hospital admissions level for states and territories in the United States. This metric indicates whether the amount of people being admitted to the hospital for respiratory illnesses is very low, low, moderate, high, or very high for a given jurisdiction and reporting week (Sunday - Saturday). If you see increased hospital admission levels of COVID-19, flu, or RSV, it might indicate there is a higher risk of infection. For more information on the hospital admissions levels, see NHSN hospital admissions methodology.
- Percent of hospitals reporting is calculated based on the number of hospitals reporting complete hospital admissions data (e.g., total admissions for the entire week) to NHSN for a given reporting week out of all hospitals that have reported to the system since the implementation of NHSN Hospital Respiratory Data in November 2024 (excluding the types listed above). Open circles on the time series display and hashed lines on the map display indicate less than 80% of hospitals reported numbers for a given jurisdiction in a reporting week. States or territories without sufficient data (less than 80% of hospitals reporting) are indicated as "Data unavailable”.
- The NHSN-based hospital bed occupancy from January 2022 to May 2024 was archived on May 10, 2024; it can be found at Archived: Hospital Occupancy (cdc.gov).
- SOURCE: Respiratory Virus Hospitalization Surveillance Network (RESP-NET).
- Combined is the sum of COVID-19, flu, and respiratory syncytial virus (RSV) hospitalization rates.
- Additional information, including the surveillance catchment area, is available on the RESP-NET website.
- Hospitalization rates are calculated using the National Center for Health Statistics (NCHS) vintage bridged-race postcensal population estimates (for March–September 2020) or the U.S. Census vintage unbridged-race postcensal population estimates (for October 2020–present) for the counties or county equivalents included in the surveillance area.
- RESP-NET surveillance for COVID-19 and RSV have been conducted year-round since 2020.
- FluSurv-NET surveillance was traditionally conducted from October 1 through April 30 of the following year; however, starting with the 2025-26 season it will be conducted year-round.
- Rates are likely to underestimate the impact of COVID-19, flu, and RSV on hospitalizations because of undertesting, differing provider or facility testing practices, and diagnostic test sensitivity. Rates presented do not adjust for testing practices which may differ by pathogen, age, race and ethnicity, and other demographic criteria.
- The data points for the 3 most recent weeks of data represent estimates of the RESP-NET hospitalization rates, called "nowcasts," which are model-based estimates that account for delayed reporting of recent hospitalizations to estimate the RESP-NET rates from the partial data received so far. Observed data values, estimated ranges, and additional details about the model estimation are available on the RESP-NET website.
- Because population estimates for ages 0–1 year are not available in smaller groupings, we split that number in two to estimate the populations for children younger than 6 months and for children 6 to less than 12 months.
- Black, White, American Indian/Alaska Native, and Asian/Pacific Islander people were categorized as non-Hispanic; Hispanic people could be of any race. If Hispanic ethnicity was unknown, non-Hispanic ethnicity was assumed. Rates presented by race and ethnicity are calculated using records with known races. Those with missing or unknown race are excluded from race-specific estimates but are included in overall estimates.
- SOURCE: Provisional Deaths from the CDC's National Center for Health Statistics (NCHS) National Vital Statistics System (NVSS). Accessed from CDC Wonder.
- Provisional data are non-final counts of deaths based on mortality data in NVSS. Data during recent periods are incomplete because of the gap in time between when a death occurs and when a death certificate is completed, submitted to NCHS, and processed for reporting. This delay can range from 1 week to 8 weeks or more, depending on the jurisdiction.
- Definitions: Provisional data are non-final death counts based on mortality data in NVSS. When a person dies, the underlying and contributing causes are recorded in the form of ICD-10 codes. Cause-specific death counts are defined as those deaths with the designated ICD-10. In this case, the ICD-10 code definitions are as follows: COVID-19 (U07.1), flu (J09-J11), RSV (J12.1, J20.5, J21.0).
- The death certificate data presented here provide a timely understanding of trends in deaths associated with each condition. However, it has been long recognized that only counting deaths where flu was recorded on death certificates would underestimate flu's overall impact on mortality. Flu can lead to death from other causes, such as pneumonia and congestive heart failure; however, it may not be listed on the death certificate as a contributing cause for multiple reasons, including a lack of testing. Therefore, CDC has an established history of using models to estimate influenza-associated death totals. In the fall of 2024, CDC released COVID-19 and RSV estimated death totals.
- Death data are displayed by date of death. Death data reported are based on the total number of deaths received and coded in a certain time period and may not represent all deaths that occurred in that period. Death counts are updated as additional data are received.
- Percent of deaths is not presented for weeks where death counts are between 1-9 in accordance with NCHS data confidentiality standards.
- Provisional death data represent deaths among U.S. residents and occurring in the 50 states, plus the District of Columbia. Assignment to a geographic area is based on the place of residence listed on the death certificate.
- The percentage of all reported deaths that are attributed as COVID-19, flu, and RSV is calculated as the number of COVID-19, flu, and RSV deaths divided by the number of deaths from all causes multiplied by 100. The percentage of deaths is less affected by incomplete reporting in recent weeks because death certificate data from natural causes of death and all causes have similar timeliness.