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WHO
who.int › home › newsroom › fact sheets › detail › influenza (seasonal)
Influenza (seasonal)
February 28, 2025 - Symptoms begin 1–4 days after infection and usually last around a week. Seasonal influenza (the flu) is an acute respiratory infection caused by influenza viruses. It is common in all parts of the world.
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CDC
cdc.gov › flu › about › season.html
Flu Season | Influenza (Flu) | CDC
October 30, 2024 - About Signs and Symptoms Causes ... influenza (flu) viruses are detected year-round in the United States, flu viruses typically circulate during the fall and winter during what's known as the flu season....
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CDC
cdc.gov › flu › about › viruses-types.html
Types of Influenza Viruses | Influenza (Flu) | CDC
September 27, 2024 - About Signs and Symptoms Causes ... D. Influenza A and B viruses cause seasonal epidemics of disease in people (known as flu season) almost every winter in the United States....
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Occupational Safety and Health Administration
osha.gov › sites › default › files › publications › OSHA_FS-4290.pdf pdf
Seasonal Influenza (Flu)
Seasonal workers have the same rights as full-time workers. We have new resources for training and toolbox talks! Ensure vehicles are safe and properly maintained. Enforce proper backing up techniques for farm equipment. ... Bring holiday hires up to speed on safety. Always wear seatbelts when operating a forklift. Stand clear when opening doors to unload deliveries. Know how to protect yourself during flu ...
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Communicable Diseases Agency
cda.gov.sg › professionals › diseases › seasonal-influenza
Seasonal influenza | Communicable Diseases Agency
March 21, 2025 - Seasonal influenza, commonly known as the flu, is an acute respiratory infection caused by influenza viruses. The disease can cause mild to severe illness, sometimes leading to death. There are three main types of influenza viruses – Type A, B and C. Influenza A (H1N1-2009), Influenza A (H3N2), ...
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CDC
cdc.gov › flu › about › index.html
About Influenza | Influenza (Flu) | CDC
February 18, 2025 - Some people with influenza virus infections do not develop any symptoms at all. A household study conducted during the 2017-2023 flu seasons found that 8 percent of people who tested positive for flu did not have symptoms.

infectious disease caused by an influenza virus

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Influenza
3d influenza virus
Influenza, commonly known as the flu, is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, … Wikipedia

Factsheet

Influenza Influenza virus
Factsheet
Influenza Influenza virus
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Wikipedia
en.wikipedia.org › wiki › Influenza
Influenza - Wikipedia
4 days ago - Influenza is typically characterized ... by influenza A virus and influenza B virus. Among influenza A virus subtypes, H1N1 and H3N2 circulate in humans and are responsible for seasonal influenza....
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PubMed Central
pmc.ncbi.nlm.nih.gov › articles › PMC5337761
A Narrative Review of Influenza: A Seasonal and Pandemic Disease - PMC
Influenza is an acute respiratory disease caused by the influenza A or B virus. It often occurs in outbreaks and epidemics worldwide, mainly during the winter season. Significant numbers of influenza virus particles are present in the respiratory ...
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European Centre for Disease Prevention and Control
ecdc.europa.eu › en › seasonal-influenza
Seasonal influenza
January 24, 2025 - Influenza (flu) is a contagious disease with mostly respiratory symptoms caused by infection with an influenza virus. Every year during the winter season, seasonal influenza affects Europe and other parts of the northern hemisphere. It can cause epidemics of varying sizes.
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Mayo Clinic
mayoclinic.org › diseases-conditions › flu › symptoms-causes › syc-20351719
Influenza (flu) - Symptoms and causes - Mayo Clinic
January 28, 2025 - Learn more about the symptoms, causes and prevention of this potentially deadly viral infection that attacks the respiratory system.
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New York State Department of Health
health.ny.gov › diseases › communicable › influenza › seasonal › providers
Seasonal Influenza Information for Health Care Providers
Prevention and Control of Influenza ... 2022–23 Influenza Season, CDC ... Public Health Law 2112 Prohibiting the Administration of Vaccines Containing More than Trace Amounts of Thimerosal to Children Less than 3 Years of Age and Pregnant Women · Current Flu Season: What You ...
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King County
kingcounty.gov › en › dept › dph › health-safety › disease-illness › influenza › avian-seasonal-pandemic-flu
Differences between avian, seasonal, and pandemic flu - King County, Washington
It is called seasonal because it usually happens each year in the late fall and winter, continuing into spring. For healthy children and adults, influenza is typically a moderately severe illness. For people with chronic health problems such as diabetes, asthma, heart or lung problems, influenza ...
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Occupational Safety and Health Administration
osha.gov › seasonal-flu
Seasonal Flu - Overview | Occupational Safety and Health Administration
The site is secure. The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely. U.S. Department of Labor ... Seasonal influenza (flu) can be transmitted year-round but is more common in the fall and winter seasons.
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PubMed Central
pmc.ncbi.nlm.nih.gov › articles › PMC1900246
Influenza Seasonality: Underlying Causes and Modeling Theories - PMC
Such cases have not been the focus of research into influenza epidemiological virology, but it is likely that they are also associated with a transient viral subpopulation with immunoevasive properties, a theory which has been borne out with mathematical models (31, 68, 69). In temperate climates, flu infections at whatever level of intensity are characterized by a flu season...
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American Medical Association
ama-assn.org › topics › influenza-seasonal-flu
Influenza (Seasonal Flu) | American Medical Association
The AMA keeps you up to date with the latest news on influenza vaccines, including types of flu vaccines available, when patients should get vaccinated, recommendations for population care and more. In addition, AMA provides resources on how to talk to patients about getting their seasonal flu ...
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Kaiser Permanente
healthy.kaiserpermanente.org › health-wellness › health-encyclopedia › he.influenza-seasonal-flu.hw122012
Influenza (Seasonal Flu) | Kaiser Permanente
Women who will be pregnant during flu season. The vaccine is also important for health care workers and anyone who lives or works with someone at higher risk of problems from the flu. You can also help avoid getting the flu by washing your hands often, keeping your hands away from your face, eating a balanced diet, exercising regularly, and not smoking. ... The symptoms of influenza ...
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FDA
fda.gov › news-events › public-health-focus › seasonal-flu-influenza-and-fda
Seasonal Flu (Influenza) and the FDA | FDA
November 19, 2024 - Your best defense against influenza disease is to get a flu vaccine every year. To find a flu vaccine near you, visit this page. Flu viruses typically spread in fall and winter, with activity peaking between December and February. Every flu season is different, and the substantial health impacts ...
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Wikipedia
en.wikipedia.org › wiki › Flu_season
Flu season - Wikipedia
2 days ago - Flu season is an annually recurring time period characterized by the prevalence of an outbreak of influenza (flu). The season occurs during the cold half of the year in each hemisphere. It takes approximately two days to show symptoms. Influenza activity can sometimes be predicted and even ...
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AHN
ahn.org › services › primary-care › conditions › seasonal-influenza-flu
Seasonal Flu: Symptoms, Treatment & Prevention
The seasonal flu is a respiratory infection caused by a virus. Most infections typically occur between December & February. Learn how you can protect yourself.
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ScienceDirect
sciencedirect.com › topics › medicine-and-dentistry › seasonal-influenza
Seasonal Influenza - an overview | ScienceDirect Topics
The vaccine is available to everyone ... adults at risk of flu, including healthcare workers, and all those aged 65 years and over.2 The WHO recommends annual vaccination for all high-risk groups, and prioritization of pregnant women. ... Seasonal influenza is an acute respiratory ...