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Laboratory Surveillance
Dataset
More than 450 public health, clinical, and commercial laboratories located throughout the United States voluntarily participate in surveillance for respiratory syncytial virus (RSV) through CDC's National Respiratory and Enteric Virus Surveillance System (NREVSS) (https://www.cdc.gov/surveillance/nrevss/labs/index.html). The data contain weekly, aggregate counts of RSV tests performed and RSV detections as reported to NREVSS since April 11, 2020.
NREVSS data are reported weekly at the national and 10 HHS regional levels (https://www.hhs.gov/about/agencies/iea/regional-offices/index.html). The presented data are RSV Nucleic Acid Amplification Test (NAAT) results, which include reverse transcription-polymerase chain reaction (RT-PCR) tests. These data exclude antigen, antibody, and at-home test results. Less than 5% of RSV tests reported to NREVSS are from antigen tests. All data are provisional and subject to change. Reporting is less complete for the most recent weeks, but relatively complete (>90%) for the period up to 2 weeks earlier.
Percent positivity is a surveillance metric used to monitor RSV activity over time and by geographic area. Participating laboratories send weekly reports of the total number of RSV tests performed that week, and the number of those tests that were positive. In the table and upon hovering on the map, the total test counts reflect the latest data reported to NREVSS and may differ from data presented by public health jurisdictions. Public health jurisdictions may have additional data not reported to NREVSS and may use a different reporting cadence. The RSV trend graphs display the weekly average percent of tests positive for RSV among all the tests performed. Each point on the regional table displays the average number of RSV tests that were performed, and the average percent of those that were positive during a 3-week period (i.e., the specified week, and the weeks immediately preceding and following it). This is also known as a centered, 3-week moving average. The RSV detections displayed are the 5-week moving average (average of the 4 previous and current weeks) in accordance with the recommendations for assessing RSV trends by detections (https://academic.oup.com/jid/article/216/3/345/3860464).
NREVSS strives to present precise estimates of respiratory viral trends and minimize reporting burden for participating laboratories. However, there are several limitations to this surveillance system. NREVSS is a laboratory-based surveillance system that does not have patient-specific data; multiple tests from a single patient may be included. In addition, NREVSS does not collect demographic or clinical data (i.e., hospitalizations or deaths). Testing practices may vary regionally, and the number of participating laboratories may change from year to year. Laboratories from all 50 states report data weekly, but reporting is voluntary and may not be representative of local RSV activity. The data do not include all test results within a jurisdiction and therefore do not reflect all RSV NAATs administered regionally or nationally. Participating laboratories vary in size, testing capabilities, and areas and populations served. Geographic results from clinical laboratories are based on testing location and laboratories may test samples from across one or more states. For more information on NREVSS and RSV surveillance please visit: https://www.cdc.gov/surveillance/nrevss.
Tags chronic lower respiratory disease respiratory disease respiratory syncytial virus rsv
API Docs
Updated
December 5 2024
Views
4,146

Laboratory Surveillance
Dataset
Approximately 600 public health and clinical laboratories located throughout the United States, participate in surveillance for respiratory syncytial virus (RSV) through CDC's National Respiratory and Enteric Virus Surveillance System (NREVSS). The dataset contains a weekly summary of the total RSV tests and RSV detections reported to NREVSS. These data are reported on a voluntary basis. Clinical laboratories do not report demographic data through NREVSS. Testing practices and the number of participating laboratories may change from year to year. Results can be changed two years after the initial reporting week. However, discrepancies may be noted and updated at the discretion of the data stewards and key stakeholders.
Data are collected from collaborating university and community hospital laboratories, select states and county public health laboratories, and commercial laboratories. This information is submitted and updated on a weekly basis.
While NREVSS strives to present the most precise national, regional and state respiratory viral trends with the least amount of burden possible for participating laboratories, there are a number of inherent limitations to this surveillance system.
NREVSS does not collect patient-data or demographic information. Multiple samples may be collected from a single patient, so NREVSS results do not necessarily reflect the number of patients tested nor does it reflect hospitalizations or deaths related to a particular virus.
Participating laboratories vary in size, testing capabilities, and areas served. Some institutions may receive and test samples from sites across a given state or even from multiple states. Without direct knowledge of the population base, NREVSS cannot be used to determine the prevalence or incidence of infection.
For more information on RSV surveillance and research please visit: https://www.cdc.gov/surveillance/nrevss and https://www.cdc.gov/rsv/research/us-surveillance.html
Tags ari bronchiolitis bronchitis lri respiratory disease and 3 more
API Docs
Updated
October 25 2022
Views
2,446

NCHS
Dataset
Effective September 27, 2023, this dataset will no longer be updated. Similar data are accessible from wonder.cdc.gov.
Provisional counts of deaths by the week the deaths occurred, by state of occurrence, and by select underlying causes of death for 2020-2023. The dataset also includes weekly provisional counts of death for COVID-19, coded to ICD-10 code U07.1 as an underlying or multiple cause of death.
NOTE: death counts are presented with a one week lag.
Tags all causes alzheimer disease cancer causes of death respiratory disease and 20 more
API Docs
Updated
September 27 2023
Views
1,016,549

Public Health Surveillance
Dataset
The Respiratory Syncytial Virus Hospitalization Surveillance Network (RSV-NET) is a network that conducts active, population-based surveillance for laboratory-confirmed RSV-associated hospitalizations in children younger than 18 years of age and adults. RSV-NET, along with the Coronavirus Disease 2019 (COVID-19) Hospitalization Surveillance Network (COVID-NET) an the Influenza Hospitalization Surveillance network (FluSuv-NET), comprise the Respiratory Virus Hospitalization Surveillance Network (RESP-NET). The RESP-NET platforms have overlapping surveillance areas and use similar methods to collect data. Because the surveillance areas and age groups included in surveillance have changed over time, trends should be interpreted with caution. RSV-NET is CDC’s source for important data on rates of hospitalizations associated with RSV. Hospitalization rates show how many people in the surveillance area are hospitalized with RSV, compared to the total number of people residing in that area.
Data are preliminary and subject to change as more data become available. Data will be updated weekly.
Tags age-adjusted rates age-adjusted rates by race and ethnicity hospitalization hospitalization rate respiratory disease and 10 more
API Docs
Updated
December 5 2024
Views
12,978

NCHS
Dataset
Final counts of deaths by the week the deaths occurred, by state of occurrence, and by select causes of death for 2014-2019. Death counts in this dataset were derived from the National Vital Statistics System database that provides the most timely access to the data. Therefore, counts may differ slightly from final data due to differences in processing, recoding, and imputation.
Tags all causes alzheimer disease cancer causes of death respiratory disease and 17 more
API Docs
Updated
April 1 2022
Views
159,095

NCHS
Dataset
Effective September 27, 2023, this dataset will no longer be updated. Similar data are accessible from wonder.cdc.gov.
This visualization provides weekly data on the number of deaths by jurisdiction of occurrence and cause of death. Counts of deaths in more recent weeks can be compared with counts from earlier years to determine if the number is higher than expected. Selected causes of death are shown, based on analyses of the most prevalent comorbid conditions reported on death certificates where COVID-19 was listed as a cause of death (see https://www.cdc.gov/nchs/nvss/vsrr/covid_weekly/index.htm#Comorbidities). Cause of death counts are based on the underlying cause of death, and presented for Respiratory diseases, Circulatory diseases, Malignant neoplasms, and Alzheimer disease and dementia. Estimated numbers of deaths due to these other causes of death could represent misclassified COVID-19 deaths, or potentially could be indirectly related to COVID-19 (e.g., deaths from other causes occurring in the context of health care shortages or overburdened health care systems). Deaths with an underlying cause of death of COVID-19 are not included in these estimates of deaths due to other causes. Deaths due to external causes (i.e. injuries) or unknown causes are excluded. For more detail, see the Technical Notes.
Tags alzheimer disease cancer causes of death cerebrovascular disease respiratory disease and 20 more
API Docs
Updated
September 27 2023
Views
102,716

NCHS
Dataset
Effective September 27, 2023, this dataset will no longer be updated. Similar data are accessible from wonder.cdc.gov.
This dataset shows health conditions and contributing causes mentioned in conjunction with deaths involving coronavirus disease 2019 (COVID-19) by age group and jurisdiction of occurrence.
2022 and 2023 data are provisional. Estimates for 2020 and 2021 are based on final data.
Tags adult respiratory distress syndrome age age group alzheimer disease respiratory disease and 32 more
API Docs
Updated
September 27 2023
Views
1,161,400

Public Health Surveillance
Dataset
The Respiratory Syncytial Virus Hospitalization Surveillance Network (RSV-NET) is a network that conducts active, population-based surveillance for laboratory-confirmed RSV-associated hospitalizations in children younger than 18 years of age and adults. RSV-NET, along with the Coronavirus Disease 2019 (COVID-19) Hospitalization Surveillance Network (COVID-NET) an the Influenza Hospitalization Surveillance network (FluSuv-NET), comprise the Respiratory Virus Hospitalization Surveillance Network (RESP-NET). The RESP-NET platforms have overlapping surveillance areas and use similar methods to collect data. Because the surveillance areas and age groups included in surveillance have changed over time, trends should be interpreted with caution. RSV-NET is CDC’s source for important data on rates of hospitalizations associated with RSV. Hospitalization rates show how many people in the surveillance area are hospitalized with RSV, compared to the total number of people residing in that area.
Data are preliminary and subject to change as more data become available. Data will be updated weekly.
Tags age-adjusted rates age-adjusted rates by race and ethnicity hospitalization rate hospitalizations respiratory disease and 10 more
API Docs
Updated
December 5 2024
Views
2,301

NCHS
Dataset
Effective September 27, 2023, this dataset will no longer be updated. Similar data are accessible from wonder.cdc.gov.
Provisional counts of deaths by the month the death occurred and by select causes of death for 2020-2023.
Tags all causes alzheimer disease cancer causes of death respiratory disease and 23 more
API Docs
Updated
September 27 2023
Views
279,811

NCHS
Dataset
Final counts of deaths by the month the deaths occurred and by select causes of death for 2014-2019.
Tags all causes alzheimer disease cancer causes of death respiratory disease and 20 more
API Docs
Updated
April 4 2022
Views
20,211