Influenza can spread quickly from sick people to others who are nearby at home, school, work, and public events. Participate in flu near you, a free, realtime disease tracking system that uses anonymous reporting to promote flu prevention. Influenza flu is an airborne viral respiratory condition characterized by symptoms of fever, cough, sore throat, and muscle pain. Type a influenza viruses in domestic poultry are categorized into low pathogenic ai lpai, which is the most common, and highly pathogenic ai hpai, or the lethal form, uncommon in us poultry. Two more children died this week, bringing the total to five so far, brammer said. Clinicians are reminded to treat suspected influenza in. In another indicator of rising activity, 37 states, up from last weeks 29, are reporting widespread flu. A poster for aged care facilities, suggesting visitors dont visit if they have flu symptoms. Bacterial pneumonia, ear infections, and sinus infections are complications of the common cold and the flu.
Influenza activity in the united states began to increase in middecember and has remained elevated as of february 4, report lenee blanton, mph, and colleagues from the cdc s influenza division at. Severe influenza illness reported cdc urges rapid antiviral treatment of very ill and high risk suspect influenza patients without waiting for testing. In virology, influenza a virus subtype h1n1 ah1n1 is the subtype of influenza a virus that was the most common cause of human influenza flu in 2009, and is associated with the 1918 flu pandemic. Choose from 276 different sets of 1nx51 cdc flashcards on quizlet. Swine influenza a h1n1 infection in two childrensouthern california, marchapril 2009. Very intense flu season on track to break records, cdc. Other complications specific to the flu may include dehydration, worsening of other chronic medical conditions such as congestive heart failure, asthma, or diabetes. Recurrent epidemics of type a flu are a constant challenge to the cdc in predicting future subtype candidate viruses. Information about avian bird influenza type a viruses cdc. If you get sick with flu, antiviral drugs may be a treatment option. It is an orthomyxovirus that contains the glycoproteins haemagglutinin and neuraminidase. Centers for disease control and prevention cdc novel influenza a h1n1 virus infections in three pregnant women united states, aprilmay 2009. The virus is a novel strain of the influenza virus, for which existing vaccines against seasonal flu provided no protection.
Weekly influenza activity estimates reported by state and territorial epidemiologists. According to the cdc s weekly flu view report, 48 states are still reporting widespread influenza outbreaks every state except hawaii and oregon, where regional flu activity was reported. Asthma, diabetes and chronic heart disease were among the most common of these. A non influenza week is defined as periods of two or more consecutive weeks in which each week accounted for less than. See weekly surveillance summaries of flu activity in south dakota. The earliest recognized case occurred in mexico with illness onset on mar 17, 2009 cdc. This flu map shows the xx week flu status by state. Weekly influenza surveillance overview, weeks 25, 2014. Choose from 120 different sets of 1nx cdc flashcards on quizlet. The cdc also said that two pediatric deaths reported last week were associated with h3n2, while one of this weeks cases was from influenza b. Occasionally, humans become infected with zoonotic influenza viruses. A person with influenza is at risk of other infections, including viral or bacterial pneumonia which is an infection of the lungs. Summary the centers for disease control and prevention cdc is providing. Influenza viruses are inactivated by sunlight, disinfectants, and detergents, such as sodium deoxycholate and sodium dodecyl sulphate.
During the spring 2009h1n1 influenza outbreak, although guidance was available for severe pandemic planning, agencylevel guidance for workforce protection and ppe use specific to h1n1 influenza was delayed. National, regional, and state level outpatient illness and. Each week, providers report data to cdc on the number of patients seen and the number with influenza like illness. It is caused by influenza virus and is easily transmitted, predominantly via the droplet and contact routes and by indirect spread from respiratory secretions on hands etc. Influenza viruses are susceptible to heat, ph extremes, dryness, and are generally unstable in the environment. What you should know about influenza flu antiviral drugs pdf icon107 kb, 2 pages, 8. Centers for disease control and prevention cdc published in may 2009 found that children had no preexisting immunity to the new strain but that adults, particularly those over 60, had some degree of immunity. Cdc urges rapid antiviral treatment of very ill and high risk suspect influenza patients without waiting for testing. Organism an influenza a virus subtype that is different from the current circulating human influenza a subtypes h1 and h3. Treatment with an influenza antiviral drug can mean the difference between.
A new influenza virus that affects cattle has an official name. This map uses the proportion of outpatient visits to healthcare providers for influenza like illness to measure the ili activity level within a state. A variant virus is an influenza virus that normally circulates and causes illness in pigs, but once a human is infected, it is called a variant influenza virus. Novel influenza a h1n1 fact sheet wic clinics what is novel influenza a h1n1. Some animals avian and swine populations are considered higher risk for transmitting a novelvariant influenza. Influenza flu information for health professionals cdc. Get your household ready for pandemic flu pdf iconpdf. Additional information about the 20192020 flu season is available here. Seasonal influenza is a preventable infectious disease with mostly respiratory symptoms. Find information on coronavirus disease 2019 covid19. Influenza fact sheet keywords department of health services, dhs, division of public health, influenza, flu, coughing, sneezing, vaccine, vaccination, flu shot, contagious, p42064, p42064 created date. Cases of ph1n1 2009 influenza were first identified in midapril 2009 in california and soon thereafter in texas and mexico cdc 2009.
Data faqs immunization investigation reporting resources. Approvals are gathered for each data source ilinet. New virus gets official name, influenza d sciencedaily. Clinicopathologic study of thirtythree fatal cases of asian influenza. Influenza activity is increasing across the country and cdc has received reports of severe influenza illness.
For this reason, they are described as h1n1, h1n2 etc. The executive committee of the international committee of taxonomy of virus announced a new genus, orthomyxovirdae. From the start of the 200910 season, the bulletin changed format and became the weekly influenza surveillance overview wiso. Influenza like illness percent by season, illinois, 20092017 200910 201112 2012 2014 201415 201516 201617 illinois outpatient health care providers are encouraged to join the illinois influenza surveillance program. Influenza c definition of influenza c by medical dictionary. The cdc is monitoring an influenza a h3n2 variant virus h3n2v which has infected pigs and humans. The cdc is watching this virus because most of the cases had contact with. January 5, 2015 this cdc commentary was written before the fda approval of the influenza antiviral medication peramivir. Pandemich1n1 influenza protection for the federal workforce. At the start of the 201415 season, the wiso was replaced by flu news europe, which is produced jointly with the who regional office for europe. Since 1977, three influenza virus subtypes have been in circulation. The centers for disease control and prevention continues its response to the novel h1n1 flu outbreak.
Seasonal flu influenza a h3n2 variant occupational. Summary influenza activity is increasing across the country and cdc has received reports of severe influenza illness. Novel influenza may be more likely to involve the lower respiratory tract. The novel flu virus, that is currently circulating in the u. However, the most accurate influenza vaccine efficacy and effectiveness estimates come from studies that use influenza specific outcomes, such as. State and jurisdiction data will be available only after approval from the individual reporting jurisdictions are received. Cdc s goals continue to be to reduce the spread and severity of illness and to provide information to assist health care providers, public health officials, and the public address the challenges posed by.
The pages listed below offer public health and health care professionals key information about vaccination, infection control, prevention, treatment, and. Outpatient influenza like illness surveillance network ilinet, centers for disease control and prevention cdc. Everyone 6 months and older needs a flu vaccine each year. The roles and responsibilities of osha and cdc, with respect to workforce protection and ppe guidance and requirements, were unclear. Flu is a contagious disease that spreads around the. Influenza vaccine composition for the 201920 season. Everything you need to know about the flu illness, including symptoms, treatment and prevention.
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