But news reports and the World Health Organization often estimate it at around 0.1%. Symptoms. To receive weekly email updates about Seasonal Flu, enter your email address: Centers for Disease Control and Prevention. The methods used to calculate these estimates are described on CDC’s webpage, How CDC Estimates the Burden of Seasonal Influenza in th… Deaths in children with laboratory-confirmed influenza virus infection have been a reportable disease in the United States since 2004; 188 deaths were reported for the 2019-20 season as of September 19, 2020. CDC estimates the influenza illnesses, hospitalizations, and deaths prevented by seasonal influenza vaccination. Review of the 2018-2019 influenza season in the northern hemisphere. CDC estimates that influenza was associated with more than 35.5 million illnesses, more than 16.5 million medical visits, 490,600 hospitalizations, and 34,200 deaths during the 2018–2019 influenza season. CDC twenty four seven. COVID-19: How mortality rates in 2020 compare with past decades and centuries. The method used to estimate flu-related deaths relies on additional data from FluSurv-NET and the National Center for Health Statistics (NCHS) (data on cause of death and numbers of deaths that occur inside versus outside of the hospital). We adjusted rates using the lowest multiplier from any season between 2010–2011 and 2017–2018. To adjust for this, CDC collects data annually from participating FluSurv-NET sites on the amount of flu testing and the type of tests used at the site. See the pre-release access list for the 2019 to 2020 annual flu report . However, data on testing practices during the 2019–2020 season were not available at the time of estimation. Fifth, estimates of burden were derived from rates of influenza-associated hospitalization, which is a different approach than the statistical models used in older published reports. 2019 to 2020 – 33%; 2018 to 2019 – 31%; 2017 to 2018 – 29%; 2016 to 2017 – 27%; 2015 to 2016 – 27%; 2014 to 2015 – 30%; 2013 to 2014 – 27.6%; 2012 to 2013 – 23%; 2011 to 2012 – 22.5%; 2010 to 2011 – 22% ; Health care worker immunization. Select rates - All deaths, rates or percentage of population for example. Peak activity during the 2018–2019 influenza season was classified as having moderate severity across ages in the population. during the 2019–2020 season, ILI and COVID-19-like illness (CLI) followed similar weekly incidence rate trends, although absolute values were different, as shown by the National Syndromic Surveillance Program in USA [23], and the general practitioners’ network in France [24]. Third, estimates of influenza-associated illness and medical visits are based on a ratio of illnesses to hospitalizations determined in a prior study. This report summarizes the 2018-2019 influenza season in the temperate regions of the northern hemisphere. Due to the 2017 to 2018 data issues described in our 2018 to 2019 ILI technical document, the ILI data included on the weekly reports has been revised. Influenza Surveillance Report (FluView), Past Flu Seasons Flu Forecasting Accuracy Results, Tools to Prepare Your Practice for Flu Season, Information for Clinicians on Influenza Virus Testing, Multiplex Assays Authorized for Simultaneous Detection of Influenza Viruses and SARS-CoV-2, Information on Collection of Respiratory Specimens for Influenza Virus Testing, Information for Clinicians on Rapid Diagnostic Testing for Influenza, Information on Rapid Molecular Assays, RT-PCR, and other Molecular Assays for Diagnosis of Influenza Virus Infection, Algorithm: Interpreting Influenza Testing Results When Influenza is Circulating, Algorithm: Interpreting Influenza Testing Results When Influenza is NOT Circulating, Guide: Influenza Diagnostic Testing in Closed Setting Outbreaks, Guidance: Standard-Based Electronic Laboratory Reporting, Guidance: Antiviral and Obstetric Health Care, Guidance: Outbreak Management in Long-Term Care Facilities, Guidance: Use of Mask to Control Influenza Transmission, Guidance: Prevention & Control in Peri- and Postpartum Settings, Health Professional References & Resources, Responding to Problems with Purchasing Needles for Flu Vaccination, U.S. Department of Health & Human Services. Older adults also accounted for 62% of deaths, which is lower than recent previous seasons. The 2019–2020 influenza season was atypical in that it was severe for children aged 0-4 years and adults 18-49 years where rates of infections, medically attended illnesses, hospitalizations, and deaths were higher than those observed during the 2017-2018 season, a recent season with high severity (7). This ratio is based on data from prior seasons, which may not be accurate if patterns of care-seeking have changed. Care 230 influenza women and In the temperate zones of the southern hemisphere, influenza activity returned to interseasonal levels. By contrast, simple peri-season rate-difference models may prove useful for estimating morta … The additional mortality data from FluSurv-NET are typically not available for up to 2 years after the end of a flu season. For the past several years, CDC has used a mathematical model to estimate the numbers of influenza illnesses, medical visits, hospitalizations, and deaths (1-4). Yearly influenza immunization rates. CDC estimates that the burden of illness during the 2018–2019 season included an estimated 35.5 million people getting sick with influenza, 16.5 million people going to a health care provider for their illness, 490,600 hospitalizations, and 34,200 deaths from influenza (Table 1). There is a trade-off between timeliness and accuracy of burden of disease estimates. However children less than 5 years old also reported a relevant influenza attributable excess death rate in the 2014/15 and 2016/17 seasons (1.05/100,000 and 1.54/100,000 respectively). COVID-19: Many people infected with the coronavirus do not feel sick or have any symptoms at all, but they can still transmit the coronavirus to … An estimated 7,800 deaths (36% of all deaths) occurred among working age adults (aged 18–64 years), an age group for which influenza vaccine coverage is often low (9). Despite some of the most severe restrictions ever endured by the UK, there has been an … US influenza statistics by flu season. In 1920, the mortality rate among people under 65 had decreased sixfold to half the mortality rate of people over 65, but 92% of deaths still occurred in people under 65. Lost in the discussion about COVID-19 is the fact that the US is experiencing a severe influenza season that has already resulted in more than 16 000 deaths. CDR is the crude death rate calculated as a simple ratio: number of registered deaths/ mid-year population (per 100000). *Some of the data used to calculate burden estimates are incomplete or not yet available. Die Influenza, auch (echte) Grippe oder Virusgrippe genannt, ist eine überwiegend durch Viren aus der Gruppe der Orthomyxoviridae und den Gattungen Influenzavirus A oder B ausgelöste Infektionskrankheit bei Menschen. However children less than 5 years old also reported a relevant influenza attributable excess death rate in the 2014/15 and 2016/17 seasons (1.05/100,000 and 1.54/100,000 respectively). The methods used to calculate the estimates have been described previously (1-2). The influenza burden was higher in young children (0-4 years) and adults (18-49 years) compared with a recent season with the 2017-2018 season, a recent season with high severity, and provides evidence to support how severe seasonal influenza can be at any age. CDC’s estimates of hospitalizations and mortality associated with the 2019–2020 influenza season show the effects that influenza virus infections can have on society. A nurse wears a cloth mask while treating a patient in Washington, DC . In the Lancet Public Health, the population-based modelling study by Li Li and colleagues1 on influenza-associated excess respiratory mortality in mainland China contributes an essential piece to the global picture of influenza-associated mortality. Saving Lives, Protecting People, Benefits of Flu Vaccination for the 2018-2019 Season, https://www.cdc.gov/flu/about/burden/past–seasons.html, https://www.cdc.gov/flu/about/classifies-flu-severity.htm, https://www.cdc.gov/flu/weekly/fluviewinteractive.htm, https://www.cdc.gov/flu/fluvaxview/coverage–1819estimates.htm, Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases (NCIRD), Reconstruction of the 1918 Influenza Pandemic Virus, 2019-2020 Preliminary In-Season Burden Estimate, Who is at High Risk for Flu Complications, Who Should & Who Should NOT Get Vaccinated, Live Attenuated Influenza Vaccine (LAIV)/Nasal Spray Vaccine, Selecting Viruses for the Seasonal Influenza Vaccine, Flu Vaccine and People with Egg Allergies, Frequently Asked Questions on Vaccine Supply, Historical Reference of Vaccine Doses Distributed, Hospitalized Adult Influenza Vaccine Effectiveness Network (HAIVEN), How Vaccine Effectiveness and Efficacy are Measured, What People with a Staph Infection Should Know about Flu, Resources for Hosting a Vaccination Clinic, Overview of Influenza Surveillance in the United States, Influenza Hospitalization Surveillance Network (FluSurv-NET), Weekly U.S. Second, national rates of influenza-associated hospitalizations and in-hospital death were adjusted for the frequency of influenza testing and the sensitivity of influenza diagnostic assays, using a multiplier approach3. However, data on testing practices during the 2018–2019 season were not available at the time of estimation. The infant mortality rate in. This burden was similar to estimated burden during the 2012–2013 influenza season1. ... During seasonal influenza, mortality is concentrated in the very young and the elderly, whereas during flu pandemics, young adults are often affected at a high rate. The number of influenza-associated illnesses that occurred last season was similar to the estimated number of influenza-associated illnesses during the 2012–2013 influenza season when an estimated 34 million people had symptomatic influenza illness6. We used death certification data from all influenza seasons from 2010–2011 through 2017–2018 where these data were available from the National Center for Health Statistics. up to week 40 2019, in 40.7% of GP practices in England, the provisional proportion of people who had received the 2019 to 2020 influenza vaccine … Mortality for COVID-19 appears higher than for influenza, especially seasonal influenza. More than 52,000 hospitalizations occurred in children aged < 18 years and 86,000 hospitalizations among adults aged 18-49 years. Seasonal influenza 2018–2019 Annual Epidemiological Report Key facts Influenza activity started in week 49/2018, peaked in week 7/2019 and returned to baseline levels in week 17/2019. Hospitalization rates among children 0-4 years old and adults 18-49 years old were higher than observed during the 2009 H1N1 pandemic (6). Influenza deaths in 2019 and 2020 . Fourth, our estimate of influenza-associated deaths relies on information about location of death from death certificates. This has led the Quarter 1 2019 mortality rate to be statistically significantly lower than all years, except 2014, which was a notably low year for mortality and had the same rate for all persons in 2019. These estimates are subject to several limitations. Weekly influenza updates for the period 2003 - 2013 Weekly electronic bulletins (2003-2009) The Weekly Electronic Bulletin was written by the European Influenza Surveillance Scheme Co-ordination Centre from the 2003–04 to the 2008–09 season. The number of cases of influenza-associated illness, medically attended illnesses, hospitalizations, and deaths were lower than some more recent seasons and similar to other seasons where influenza A(H1N1)pdm09 viruses dominated (7, 8). Division of Information, Evidence, Research and Innovation WHO Regional Office for Europe UN City Marmorvej 51 DK-2100 Copenhagen Ø Denmark Tel. The Y axis goes to 1%. Human infectious diseases may be characterized by their case fatality rate (CFR). However, influenza-associated pediatric deaths are likely under-reported, as not all children whose death was related to an influenza virus infection may have been tested for flu (10,11). Flu: Caused by any of several different types and strains of influenza viruses.Different strains circulate each year. This report summarizes the 2018-2019 influenza season in the temperate regions of the northern hemisphere. Final case counts may differ slightly as further data cleaning from the 2019-2020 season are conducted by FluSurv–NET sites. Please also see the following dataset: Deaths registered in England and Wales. The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website. Older adults also accounted for 75% of influenza-associated deaths, highlighting that older adults are particularly vulnerable to severe outcomes resulting from an influenza virus infection. However, each season’s estimates will be finalized when data on testing practices and deaths for that season are available. 50 30 40 Syndromic surveillance o Syndromic surveillance indicators for influenza remained low, in weeks 37 and 38 2019. o For further information, please see the Syndromic surveillance webpage. COVID-19: Caused by the 2019 coronavirus, also known as SARS-CoV-2.. Data to generate these frequencies were not available from the 2019–2020 season at the time of estimation, so we used the average frequencies of location of death for each of the cause categories from previous seasons, 2010–2011 through 2017–2018. These estimates are an update to the preliminary in-season 2019-20 burden estimates published April 2020 and are based on more recently available information. FDA Approval and Regulation of Pharmaceuticals, 1983-2018 Global Burden of Cancer, 1990-2017 Global Burden of Skin Diseases, 1990-2017 Global Firearm Mortality, 1990-2016 Health Care Spending in the US and Other High-Income Countries Life Expectancy and Mortality Rates in the United States, 1959-2017 Medical Marketing in the United States, 1997-2016 Practices to Foster Physician … ICD-9 BTL codes: B322 ICD-9 codes: 487 ICD-10 codes: J10-J11 ex-USSR 175 list: 104 ICD-10 Mortality Condensed list 1: 1073 EUROSTAT list of 65 causes: 38 SDR is the age-standardized death rate calculated using the direct method and standard European population structure. Comparing COVID-19 and 2020 influenza and pneumonia mortality rates, the largest absolute difference in rates was found in those aged 85 years and over, with a difference of 712.9 deaths per 100,000 people. Final case counts may differ slightly as further data cleaning from the 2018–2019 season are conducted by FluSurv–NET sites. Influenza viruses circulated at high levels between weeks 52/2018 and 12/2019. Influenza season 2019 ... are already seeing increased rates of influenza hospitalisation. Based on NCHS mortality surveillance data available on April 1, 2021, 11.4% of the deaths that occurred during the week ending March 27, 2021 (week 12), were due to pneumonia, influenza, and/or COVID-19 (PIC). Burden estimates from the 2019–2020 season will be updated at a later date when data on contemporary testing practices become available. These multipliers are based on data from a prior season, which may not be accurate if patterns of care-seeking have changed. The burden of influenza and the rates of influenza-associated hospitalization are usually higher for the very young and the very old, and while this was observed during the 2019–2020 season, rates of hospitalization in adults aged 18-49 years were the highest seasonal rates seen since the 2017-2018 season (Table 2). The average annual mortality excess rate per 100,000 ranged from 11.6 to 41.2 with most of the influenza-associated deaths per year registered among the elderly. While the medical community is still learning about mortality from COVID-19, it does appear to be more deadly than the flu. Poisson regression models permit the estimation of deaths associated with influenza A and B, but require robust viral surveillance data. The season was characterized by two consecutive waves of activity, beginning with influenza B viruses and followed by A(H1N1)pdm09 viruses. 22,000 flu deaths, enough people to fill Madison Square Garden in New York City. You will be subject to the destination website's privacy policy when you follow the link. These reports summarise the levels of influenza across the UK in previous winters. Compared with the 2017–2018 season , which was classified as high severity, the overall rates and burden of influenza were much lower during the 2018–2019 season (Table 2). Influenza mortality in symptomatic cases in the US for the 2018/2019 season. For these estimates, we included additional information to better capture flu testing practices at sites in the hospital-based surveillance system, FluSurv-NET, that collects data on patients hospitalized with laboratory-confirmed flu. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website. Analysis of the characteristics of people who died from the coronavirus (COVID-19), compared with people who died from influenza (flu) and pneumonia. Burden estimates from the 2018–2019 season will be updated at a later date when data on contemporary testing practices become available. Seasonal influenza is an acute respiratory infection caused by influenza viruses which circulate in all parts of the world. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website. The 2019-2020 estimates that are presented here remain preliminary because not all of the data needed for final estimates are available. We estimate, overall, there were 490,600 hospitalizations and 34,200 deaths during the 2018–2019 season. Unlike adult flu-related deaths, pediatric flu-related deaths are reportable in the United States. This is unusual since influenza is typically most deadly to weak individuals, such as infants under age two, adults over age 70, and the immunocompromised . That is longer than the average period of nine weeks during the last 20 years, but it is shorter than the extended influenza epidemic of 2017/2018 which lasted 18 weeks. These findings continue to highlight that older adults are particularly vulnerable to severe disease with influenza virus infection. Primary Care In week 50, the rate of influenza-like illness (ILI) continues … There is no evidence of significant excess mortality at this early stage, however experience during past seasons suggests a significant mortality impact on ... mortality for public health action). We adjusted rates using the most conservative multiplier from any season between 2010–2011 and 2016–2017. The preliminary in-season 2019-20 burden estimates were made using the highest flu testing rate for each age-group from the 2010-2011 through the 2016-2017 seasons. CDC twenty four seven. Influenza activity in the United States during the 2019–2020 season began to increase in November and was consistently high through January and February. Mortality for COVID-19 appears higher than for influenza, especially seasonal influenza. Activity– Currently, influenza and influenza-like illness (ILI) activity is lower than average for this time of year compared to previous years, and is consistent with past activity following a peak in notifications and coming to the end of the influenza season. To calculate these ratios, first we calculate the frequency of flu-related deaths reported from our FluSurv-NET surveillance system that have cause of death identified as pneumonia or influenza (P&I), other respiratory or cardiovascular (other R&C), or other non-respiratory, non-cardiovascular (non-R&C). This web page provides estimates on the burden of influenza in the United States for the 2018–2019 influenza season. These frequencies were not available from the 2018–2019 season at the time of estimation, so we used the average frequencies of each cause from previous seasons, 2010–2011 to 2016–2017. Human mortality from H5N1 or the human fatality ratio from H5N1 or the case-fatality rate of H5N1 refer to the ratio of the number of confirmed human deaths resulting from confirmed cases of transmission and infection of H5N1 to the number of those confirmed cases. We do not state what the peak month is for influenza deaths. Forty-three percent of hospitalizations occurred in older adults aged ≥65 years. This information is used to correct for the underestimates of flu-related hospitalizations. These symptoms typically begin 1–4 … These rates mean that an estimated 15 million cases of influenza in younger adults (aged 18-49 years), which is the highest number of infections for this age group since CDC began reporting influenza burden estimates in the 2010-11 season. Summary – Week 51 (ending 22 December 2019) week. Our finding that baseline respiratory mortality and access to he … for age groups 45–54, 65–74, 75–84, and 85 and over. However, influenza-associated pediatric deaths are likely under-reported as not all children whose death was related to an influenza virus infection may have been tested for influenza9,10. In contrast, Japan and Taiwan had reported a mortality rate from influenza around 0.45% and 0.69% respectively, higher than the mortality rate collected from data in Chinese port cities, such as Hong Kong (0.25%), Canton (0.32%), and Shanghai. The average annual mortality excess rate per 100,000 ranged from 11.6 to 41.2 with most of the influenza-associated deaths per year registered among the elderly. 2019 of 558.3 infant deaths per 100,000 live births did not change significantly from the rate … To provide timely burden estimates to the public, clinicians, and public health decision-makers, CDC uses preliminary data that may lead to over- or under-estimates of the true burden. Furthermore, our model uses the frequency of influenza-related deaths that have cause of death related to pneumonia or influenza (P&I), other respiratory or cardiovascular (other R&C), or other non-respiratory, non-cardiovascular (non-R&C) to account for deaths occurring outside of a hospital by cause of death. The case fatality rate for influenza will obviously change year to year. Select cause of death (ICD10 code search is available). A total of 19,713 influenza-related hospitalizations were reported between October 1, 2019 and March 28, 2020. The highest age-specific mortality rate was observed in those aged 85 years and over, with 1,744.3 deaths per 100,000 people. Freedom of Information | Released on 14 April 2020 Influenza deaths from 1999 to 2021 . Influenza was associated with substantial excess respiratory mortality in China between 2010–11 and 2014–15 seasons, especially in older adults aged at least 60 years. The current estimates were made using the highest testing rate for each age-group from the 2010-2011 through the 2017-2018 seasons. However, death certificate data during the 2019–2020 season were not available at the time of estimation. Fourth, our estimate of influenza-associated deaths relies on information about location of death from death certificates to calculate ratios of deaths occurring in the hospital to deaths occurring outside of the hospital by categories of causes of death. Influenza activity in the United States during the 2018–2019 season began to increase in November and remained at high levels for several weeks during January–February5. Read the review in the Weekly epidemiological record While the medical community is still learning about mortality from COVID-19, it does appear to be more deadly than the flu. Excepting cases in Hubei, the mortality rate dropped down to 0.16 percent, bringing it much closer to the flu. Human mortality from H5N1 or the human fatality ratio from H5N1 or the case-fatality rate of H5N1 refer to the ratio of the number of confirmed human deaths resulting from confirmed cases of transmission and infection of H5N1 to the number of those confirmed cases. Erratum to 2017 to 2018 season ILI data . The dual waves resulted in a protracted season during 2018–2019 that was less severe when compared with peak activity in 2017–2018, but resulted in a similar burden of illness in children by the end of the season.