The centers for disease control and prevention provided an update on flu activity this season from octobermiddecember 2016 in todays morbidity and mortality weekly report and noted a slow but steady increase in activity during november and early december, with influenza a. The weekly report for the 20172018 season will being in october. In the meantime, cdc and the american academy of pediatrics aap recommend flu shots this flu season, not the nasal spray flu vaccine. Influenza vaccination is the best way to prevent influenza virus infection, and among adults 65 years and older cdc estimates that vaccination prevented 23% of influenza related hospitalizations during the 2015 2016 season. May 20, 2017 information on influenza activity year round in new york state nys and produces this weekly report during the influenza season october through the following may. Seasonal flu centers for disease control and prevention. During the 20152016 season, overall influenza activity was moderate, with a lower percentage of outpatient visits for influenzalike illness ili, lower hospitalization rates, and a lower percentage of. In 2016 and 2017, ah7n8 and ah7n9 viruses were identified in poultry flocks in 2 states. On june 22, 2016, cdc s advisory committee on immunization practices acip voted that the live attenuated influenza vaccine laiv should not be used during the 2016 2017 flu season. During the 201516 influenza season, the cdcs advisory committee on immunization practices acip removed the 201415 preferential recommendation for live attenuated influenza vaccine laiv for healthy children aged 2 through 8 years. Nationally, influenza activity peaked in midfebruary, with influenza a h3n2 viruses predominate early in the season through the.
The 20152016 influenza season has been milder than the previous three seasons and appears to have peaked later than normal, according to the. Symptomatic illnesses, medical visits, hospitalizations. Past seasons estimated influenza disease burden cdc. Recommended composition of influenza virus vaccines for use in the 2020 2021 northern hemisphere influenza season 28 february 2020. Pediatric influenza deaths in us second highest on record. Details of the influenza vaccine effectiveness network have been published previously.
The percentage of specimens testing positive for influenza a continued to. Pdf prevention and control of seasonal influenza with. Since the 201011 season, the cdc estimates influenza virus infection has caused 9. In maryland, a total of 41 sentinel providers participated in ilinet during the 201718 influenza season. Centers for disease control and prevention cdc manage ilinet in collaboration with the influenza surveillance coordinators in states and territories. Previous weeks case counts or percentages may change due to delayed processing or reporting. Sep 26, 2018 the 20172018 flu season was one of the deadliest in decades according to the cdc. Summary of the 20162017 flu season passport health. During their first influenza season, children aged 6 months through 8. The upcoming flu seasons vaccine options are listed in the table of us influenza vaccines in the acip influenza vaccine recommendations for 2016. Influenzalike illness is reported by age groups, during the 20162017 season the 04 age group had the highest amount of patients seen with ili. Are there new recommendations for the 2016 2017 influenza season. Cdc s adjusted overall ve estimate against influenza a and b viruses for all ages was 47%. Unlike flu deaths in children, flu deaths in adults are not nationally reportable.
Aug 10, 2017 because the 2016 2017 ah1n1pdm09 strain used in the live attenuated vaccine was unchanged from 2015 2016, the advisory committee on immunization practices made an interim recommendation not to use the live attenuated influenza vaccine for the 2016 2017 influenza season. Acip continues to recommend annual flu vaccination for everyone 6 months and older. Between 2006 and 2016, the combined number of inpatient stays plus ed visits involving influenza ranged from 189,200 rounded to the nearest hundred in. The overall burden of influenza for the 20162017 season was an estimated 29 million influenza illnesses, 14 million influenzaassociated medical visits, 500,000 influenzarelated hospitalizations, and 38,000 influenzaassociated deaths table. Healthcare cost and agency for healthcare utilization. The most frequently identified influenza virus type reported by public health laboratories during week 47 was influenza a viruses, with influenza a h3 viruses predominating. The centers for disease control and prevention is a preapproved. Influenza surveillance weekly report cdc mmwr week 19. Flu shots work and can keep your child from getting sick. People who are at high risk of serious flu illness should take flu antiviral drugs quickly if they get sick. Flumist quadrivalent was not recommended for use during the 20172018 influenza season owing to concerns about its effectiveness against h1n1pdm09 viruses during the 202014 and 2015 2016 seasons. Increased surveillance for influenza in florida for the 201920 season began in week 40 starting on september 29, 2019 and will extend through week 20 ending may 16, 2020.
During the 2015 2016 season, overall influenza activity was moderate, with a lower percentage of outpatient visits for influenza like illness ili, lower hospitalization rates, and a lower percentage of. As you are planning to get your family vaccinated this fall, remember that some children 6 months through 8 years of age require two doses of flu vaccine. Burden estimates for the 20152016 influenza season cdc. Summary influenza activity is increasing across the country and cdc has received reports of severe influenza illness. Depending on the severity of a flu season, the cdc has reported anywhere from 40 to more than 300 deaths among babies and children in a year. The viruses in the vaccine are killed and therefore, cannot cause the flu. Estimated influenza disease burden, by season united states, 201011 through 201718 influenza seasons. It is recommended that trivalent vaccines for use in the 20152016 influenza season northern hemisphere winter contain the following. Since october 2015, cdc has detected cocirculation of multiple seasonal influenza virus types and subtypes, with recent reports of severe respiratory illness among young to middleaged adults with h1n1pdm09 virus infection. Who recommended composition of influenza virus vaccines for. Flu season deaths top 80,000 last year, cdc says cnn.
Recommendations of the advisory committee on immunization practicesunited states 2016 17 influenza season article pdf available in mmwr. The influenza season 20162017 has now come to an end in europe. Jun 01, 2017 the influenza season 20162017 has now come to an end in europe. It is recommended that trivalent vaccines for use in the 2015 2016 influenza season northern hemisphere winter contain the following. Some people mistakenly confuse flu symptoms with the vaccine side effects.
Centers for disease control and prevention cdc update. Influenza surveillance data washington state department of. The us centers for disease control and prevention cdc said today in morbidity and mortality weekly report mmwr that the 201617 flu season was dominated by influenza a h3n2, and the flu vaccine was only 34% effective in protecting recipients against that strain and 42% effective against all strains. National influenza vaccination week nivw, scheduled for december 612, 2015, provides an opportunity to remind everyone 6 months and older that its not too late to get a flu vaccine. During the 2016 2017 season, 36 649 influenza positive specimens have been collected and reported by public health laboratories in the united states figure, left. Seasonal influenza vaccine long stay mds coding tip sheet. Estimated influenza disease burden, by age group united states, 20152016 influenza season.
Summary the centers for disease control and prevention cdc is providing. Flu vaccination coverage, united states, 201617 influenza season. Estimated influenza disease burden, by season united states, 201011 through 201718 influenza. Oct 03, 2016 in the meantime, cdc and the american academy of pediatrics aap recommend flu shots this flu season, not the nasal spray flu vaccine. Flu vaccination coverage, united states, 201516 influenza season cdc. For example, during the 2016 2017 influenza season, cdc estimates that flu vaccine prevented an estimated 5. The overall burden of influenza for the 2016 2017 season was an estimated 29 million influenza illnesses, 14 million influenza associated medical visits, 500,000 influenza related hospitalizations, and 38,000 influenza associated deaths table. Similar estimates for 20172018 will be released in fall 2018.
Everyone 6 months and older get a flu vaccine each season. Influenza surveillance data washington state department. Figure 9 cdc fluview weekly influenza activity map 20152016. The influenza virus shown, source of one of the most common infectious diseases, is a highly contagious airborne virus that causes an acute febrile illness and results in variable degrees of systemic symptoms, ranging from mild fatigue to respiratory failure and death. The cdc reports a variety of weekly influenza morbidity and mortality indicators during the flu season. Recommended composition of influenza virus vaccines for use in the 20152016 northern hemisphere influenza season 26 february 2015. United states, 201617 season 1 human infection with an influenza a virus that is different from currently circulating human seasonal viruses 14 reported to cdc during 201617 season influenza a h7n2 new york city not hospitalized, fully recovered close, prolonged, unprotected exposure to sick cats infected with h7n2. Three human infections with novel influenza a viruses were reported to cdc during the 201617 influenza season. During the 20182019 influenza season, clinical laboratories tested approximately 1.
Influenza vaccine effectiveness in the united states during. Estimated influenza disease burden, by age group united states, 20162017 influenza season. Influenza activity in the united states during the. The cdc acquired preliminary data on the effectiveness of laiv among children 2 years through 17 years during 20152016 season when it became available in late spring from the u. Influenza national influenza surveillance data during the 201617 season, influenza activity was moderate. Influenza national influenza surveillance data during the 2016 17 season, influenza activity was moderate. This report summarizes the severity of the most recent influenza season, including when influenza activity peaked based on different surveillance measures, such as acute respiratory illness, number respiratory specimens that test positive for influenza by influenza type, and the total number of influenzarelated deaths. The patient was not hospitalized and fully recovered. During week 47 november 2228, 2015, influenza activity increased slightly in the united states but remained low overall. For the previous six weeks, almost all eueea countries had reported low influenza activity. Review the residents medical record to determine whether an influenza vaccine was received in the facility for this years influenza season. Influenza activity in the united states during the 201617. Sep 29, 2016 influenza vaccination coverage across the entire u.
Influenza activity is increasing across the united states and cdc has received several reports of severe influenza illness. While influenza viruses circulate yearround, most of the time flu activity peaks between december and february, but activity can last as late as may. Bitarvolume 22, number 2february 2016 avian influenza ah7n9 virus infection in 2 travelers returning from china to canada, january 2015 danuta skowronski et al. Select up to three search categories and corresponding keywords using the fields to the right. During the 20152016 influenza season, zero 0 houston influenzaassociated pediatric deaths have been reported. Basic information about the 20162017 flu season cdc. Despite this years mild season, 40 children have died from flu complications so far, brammer said.
Summary influenza activity is increasing across the country and cdc has received reports of severe influenza. The influenza reporting year is defined by standard reporting weeks outlined by the centers for disease control and prevention, where every year has 52 or 53 reporting weeks. The american academy of pediatrics aap recommends that all children ages 6 months and older receive a seasonal flu shot during the 2016 17 season, as vaccination remains the best available preventive measure against influenza, according to an updated policy statement in the october. Cdc recommends annual influenza vaccination for everyone 6 months and older. Influenza vaccination coverage across the entire u. The season was notable for the predominant circulation of influenza a h3n2 viruses. This was due to the demonstrated low effectiveness against influenza ah1n1pdm09 in the united states during the 2014 and 201516 seasons. Refer to the help section for more detailed instructions. For the 20162017 season, influenzalikeillness ili in the united states went above baseline the week ending december 17, 2016 and remained elevated as of. Influenza activity united states, 201516 season and. In week 172017, all eueea countries reported low influenza activity and the positivity rate proportion of influenza virus positives among all tested specimens falling below the 10% benchmark to 9.
Influenzalike illness ili surveillance sentinel surveillance for ili consists of five outpatient reporting sites for the district of columbia. The 20172018 flu season was one of the deadliest in decades according to the cdc. On june 22, 2016, the acip issued an interim recommendation that live attenuated influenza vaccine or laiv flumist quadrivalent vaccine, should not be used during the 2016 17 flu season. Because the 20162017 ah1n1pdm09 strain used in the live attenuated vaccine was unchanged from 20152016, the advisory committee on immunization practices made an interim recommendation not to use the live attenuated influenza vaccine for the 20162017 influenza season.
Influenza vaccine effectiveness in the united states. The peak week of flu activity in terms of influenzalike. According to the bureau of labor statistics, in 2015, 4. The cdc acquired preliminary data on the effectiveness of laiv among children 2 years through 17 years during 2015 2016 season when it became available in late spring from the u. Information on how these estimates are calculated can be found on cdc s web page how cdc estimates the burden of seasonal influenza in the u. In the united states, flu season occurs in the fall and winter. Are there new recommendations for the 20162017 influenza season. Here are seven key points on the most recent flu season, which ran oct. Cdc released flu activity report for 201617 season. Volume 22, number 1january 2016 hemagglutinin gene clade 3c.
Burden estimates for the 20162017 influenza season cdc. Apr 01, 2016 the 20152016 influenza season has been milder than the previous three seasons and appears to have peaked later than normal, according to the cdc. Influenza activity bureau of infectious disease control. Severe influenza illness reported cdc urges rapid antiviral treatment of very ill and high risk suspect influenza patients without waiting for testing. Cdc estimates that influenza vaccination during the 20152016 influenza season prevented 5. These indicators serve a primary purpose of judging the. Most of the time flu activity peaks between december and february, although activity can last as late as may. Seasonal influenza in the united states 20162017 soa. Influenza spotlight emerging infectious diseases journal cdc.
Distributed via the cdc health alert network february 1, 2016, 0850 est 8. Who recommended composition of influenza virus vaccines. The centers for disease control and prevention provided an update on flu activity this season from octobermiddecember 2016 in todays morbidity and mortality weekly report and noted a slow but steady increase in activity during november and early december, with influenza a h3n2 viruses predominating. An estimated 80,000 americans died of flu and its complications last winter. T he 20182019 flu season may not have been as severe as the one that came before it, but it set a record of its own, the centers for disease control and prevention cdc say. For the 201617 season, cdc genetically characterized 2,476 influenza viruses 311 influenza ah1n1pdm09, 1,280 influenza ah3n2, and. Therefore, cdc selects a subset of influenza a h3n2 viruses to test using a focus reduction assay for supplementary antigenic characterization. This report summarizes the severity of the most recent influenza season, including when influenza activity peaked based on different surveillance measures, such as acute respiratory illness, number respiratory specimens that test positive for influenza by influenza type, and the total number of influenza related deaths. Influenza spotlight emerging infectious diseases journal. The reports measure the vaccines effectiveness to improve it for the 20172018 flu season. Comparable numbers for this years flu season arent available yet, brammer said. This will be the last issue of the influenza watch for the 201920 season. Prevention and control of seasonal influenza with vaccines. On june 22, 2016, cdcs advisory committee on immunization practices acip voted that the live attenuated influenza vaccine laiv should not be used during the 20162017 flu season.
The centers for disease control and prevention cdc has released an updated. Jun 01, 2019 based on this level of protection, cdc estimated that vaccination prevented an estimated 84700 influenzarelated hospitalizations and 2. Recommended composition of influenza virus vaccines for use in the 2015 2016 northern hemisphere influenza season 26 february 2015. Cdc publishes recommendations for 201617 influenza season. It is recommended that quadrivalent vaccines for use in the 2020 2021 northern hemisphere influenza season contain the following. The peak week of flu activity in terms of influenza like. Aap issues flu vaccine recommendations for 201617 season. Estimated influenza disease burden, by season united states, 201011 through 201819 influenza seasons. Influenza a h1n1pdm09 viruses predominated during the 201516 influenza season, with influenza b viruses, and to a lesser extent, influenza a h3n2 viruses cocirculating. Frequently asked flu questions 20162017 influenza season. Tis the season for shopping and for workingspecifically in retail. This is the final influenza surveillance report for the 20152016 season.