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Provides an update on how respiratory viruses are contributing to serious health outcomes, like hospitalizations and deaths.
Trends in Hospitalization Rates
Beginning November 1, 2024, the Centers for Medicare and Medicaid Services (CMS) is requiring hospitals to report information regarding COVID-19, influenza, and RSV hospitalizations, and hospital bed capacity occupancy data to CDC's National Healthcare Safety Network (NHSN). This website site will display data collected by both NHSN as well as RESP-NET for the remainder of the 2024-2025 respiratory virus season as the CMS requirements for NHSN reporting were not effective until November 1, 2024.
Hospitalization Rates Reported by Hospitals
Weekly hospitalization rates of respiratory virus-associated hospitalizations per 100,000 population from CDC's National Healthcare Safety Network (NHSN). Preliminary data are shaded in gray. Refer to data notes for more details.
Hospitalization Rates from a Network of Hospitals
Weekly hospitalization rates of respiratory virus-associated hospitalizations per 100,000 population from RESP-NET. Preliminary data are shaded in gray. Refer to data notes for more details.
Trends in Viral Respiratory Deaths in the United States
Weekly percent of total deaths associated with COVID-19, influenza, and RSV. Preliminary data are shaded in gray. Refer to data notes for more details.
Respiratory death data were last updated on September 23, 2025. The next update will occur as soon as data are available.
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 National Healthcare Safety Network (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: https://www.cdc.gov/nhsn/psc/hospital-respiratory-reporting.html.
- Data quality and timeliness: While CDC reviews reported data for completeness and errors and corrects those found, some reporting errors might still exist within the data. CDC and partners work with reporters to correct any errors and update the data in subsequent weeks. Data for the most recent two weeks may be affected by potential reporting delays; caution should be taken when interpreting these data.
- Metrics and inclusion criteria: Many hospital subtypes, including acute care and critical access hospitals, are included in the rate calculations displayed on this page. Psychiatric, rehabilitation, and religious non-medical hospital types are excluded from calculations. Hospitals that reported complete admissions data to NHSN during a given week are included in the rate calculations and the visualization.
- 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 (per 100,000) as per the U.S. Census vintage 2023 population estimates.
- Percent of hospitals reporting is calculated based on the number of active hospitals reporting complete data to NHSN for a given reporting week. Open circles on the display indicate if reporting levels were below <80% of hospitals reporting for a given jurisdiction and reporting week. Lower levels of reporting were expected in November 2024 as the new reporting requirement went into effect.
- 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, influenza, and respiratory syncytial virus (RSV) hospitalization rates.
- Additional information, including the surveillance catchment area, is available at https://www.cdc.gov/resp-net/dashboard/index.html.
- Data are preliminary and subject to change as more data become available. In particular, case counts and rates for recent hospital admissions are subject to lag.
- 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.
- COVID-19 and respiratory syncytial virus (RSV) surveillance are currently conducted year-round. For influenza, the 2024-25 season included hospital admissions from October 1, 2024 through April 30, 2025. Starting with the 2025-26 season, influenza surveillance will be conducted year-round.
- FluSurv-NET surveillance for the 2025-26 season began on October 1, 2025.
- Rates are likely to be underestimated as some COVID-19-, influenza-, and respiratory syncytial virus (RSV)-associated hospitalizations might be missed 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.
- U.S. Census unbridged-race postcensal population estimates used as denominators for race provide data for children ages 0–1 year. To calculate rates of hospitalization among children ages <6 months and 6 months to <12 months, the population estimate for children ages 0–1 year is halved.
- 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 race. 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 https://wonder.cdc.gov/mcd-icd10-provisional.html
- Provisional data are non-final counts of deaths based on mortality data in NVSS. Data during recent periods are incomplete because of the lag 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 counts of deaths based on mortality data in NVSS. Cause-specific death counts are defined as those deaths with the designated ICD-10 codes listed as an underlying or contributing cause of death on the death certificate. The ICD-10 code definitions are as follows: COVID-19 (U07.1), Influenza (J09-J11), Respiratory Syncytial Virus (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 influenza was recorded on death certificates would underestimate influenza's overall impact on mortality. Influenza 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 as of the date of analysis and may not represent all deaths that occurred in that period.
- 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. Data from U.S. territories are not currently included in NVSS provisional reporting.
- The percentage of all reported deaths that are attributed as COVID-19/Influenza/Respiratory syncytial virus (RSV) is calculated as the number of COVID-19/Influenza/Respiratory syncytial virus (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.