influenza what cause
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What Causes the Flu? A good start is to know what causes it. This illness is different from a cold. While more than 100 different viruses can cause a cold, only influenza virus types A, B, and C cause the flu.
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Influenza Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus. Symptoms can be mild to severe. The most common symptoms include: a high fever, runny nose, sore throat, muscle pains, headache, coughing, and feeling tired. These symptoms typically begin two days after exposure to the virus and most last less than a week. The cough, however, may last for more than two weeks.
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Influenza in children Influenza in children. Influenza (or “flu”) is a respiratory infection caused by influenza virus. Influenza outbreaks happen every year, usually between November and April. Because influenza viruses change – often from year to year – people don’t stay immune for very long.
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Influenza Influenza, commonly known as the flu , is an infectious disease caused by the influenza virus. Symptoms can be mild to severe. The most common symptoms include: a high fever, runny nose, sore throat, muscle pains, headache, coughing, and feeling tired.lu symptoms in birds are variable and can be unspecific. The symptoms following infection with low-pathogenicity avian influenza may be as mild as ruffled feathers, a small reduction in egg production, or weight loss combined with minor respiratory disease.
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Public Health The Flu: A Guide for Parents FLU INFORMATION What is the flu? Influenza (the flu) is an infection of the nose, throat, and lungs caused by influenza viruses. There are many different influenza viruses that are constantly changing. Flu viruses cause illness, hospital stays and deaths in the United States each year.
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Influenza Influenza, commonly known as the flu , is an infectious disease caused by the influenza virus. Symptoms can be mild to severe. The most common symptoms include: a high fever, runny nose, sore throat, muscle pains, headache, coughing, and feeling tired.ymptoms of influenza can start quite suddenly one to two days after infection. Usually the first symptoms are chills or a chilly sensation, but fever is also common early in the infection, with body temperatures ranging from 38 to 39 °C (approximately 100 to 103 °F).
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The Flu The Flu The flu is a contagious respiratory illness caused by influenza viruses. Symptoms may include a sudden onset of fever, cough, headache or muscle aches, tiredness, sore throat and nasal congestion or stuffiness.
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Key Facts About Influenza (Flu) What is Influenza (also called Flu)? The flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent the flu is by getting a flu vaccine each year. Signs and Symptoms of Flu People who have the flu often feel some or all of these signs and symptoms that usually start suddenly, not gradually:
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Influenza A virus Influenza A virus causes influenza in birds and some mammals, and is the only species of influenza virus A. Influenza virus A is a genus of the Orthomyxoviridae family of viruses. Strains of all subtypes of influenza A virus have been isolated from wild birds, although disease is uncommon.
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Influenza A virus Influenza A virus. Influenza A virus causes influenza in birds and some mammals, and is the only species of influenza virus A. Influenza virus A is a genus of the Orthomyxoviridae family of viruses. Strains of all subtypes of influenza A virus have been isolated from wild birds, although disease is uncommon.
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- Influenza, commonly known as the flu , is an infectious disease caused by the influenza virus. Symptoms can be mild to severe. The most common symptoms include: a high fever, runny nose, sore throat, muscle pains, headache, coughing, and feeling tired. These symptoms typically begin two days after exposure to the virus and most last less than a week.
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The Agent Flu, or influenza, is a contagious respiratory illness that spreads from person to person through the air via coughs or sneezes or through contact with infected surfaces. It is caused by a group of continuously changing viruses called influenza viruses. Influenza viruses change easily and often, they are unpredictable, and they can be deadly.
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What Causes the Flu? The flu is a highly contagious and common illness that is caused by the influenza virus. There are three different types of flu viruses: influenza A, B and C. However, only type A and B cause illness in humans.
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- Read More: Influenza is also called the flu and is caused by the Influenza virus. This virus targets the respiratory tract and results in an infection that settles into the nose, sinuses, throat, bronchial tubes and possibly the lungs. Fever, headache, extreme fatigue and body aches are typical symptoms of influenza which are commonly associated with a dry cough, sore throat, and nasal congestion.
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Key Facts About Influenza (Flu) The flu is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. It can cause mild to severe illness, and at times can lead to death. The best way to prevent the flu is by getting a flu vaccine each year. Signs and symptoms of flu.
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Influenza Influenza, or flu, is a contagious respiratory infection caused by several flu viruses that infect the nose, throat and lungs. People infected with the seasonal flu virus feel miserable with fever, chills, muscle aches, coughing, congestion, headache and fatigue for a week or so.
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- Knowledge center. Influenza, or flu, is a respiratory illness that is caused by a virus. Flu is highly contagious and is usually spread by the coughs and sneezes of a person who is infected. You can also catch flu from an infected person if you touch them (e.g. shaking hands).
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Achy, Flu-Like Symptoms Influenza is a seasonal viral disease that typically causes symptoms of fever, chills, headache, stuffy nose, sore throat and muscle aches. Fever and muscle aches are typically among the first symptoms to develop. Muscle aches are caused by the immune system's response to the viral infection and typically last from three to eight days.
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Influenza Basic Research Influenza A virus is the group that most commonly causes illness in humans and is the source of all of the major influenza pandemics in modern history. This type can drift and shift through birds and animals, meaning it emerges with rearranged surface proteins that create different strains of the virus. The surface proteins that combine in different ways to create an assortment of influenza virus type A strains are called hemagglutinin (HA) and neuraminidase (NA).
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Influenza (Seasonal Flu) - Cause Influenza (Seasonal Flu) - Cause. The flu is caused by the influenza virus. Doctors classify the virus as influenza type A and type B, each of which includes several subtypes or strains. Type A is usually responsible for the annual outbreaks that typically occur in the late fall and early winter.
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The Pulse Like a cold, flu is caused by a virus, usually the influenza A or B virus. But influenza can be deadly and every year around 2,500 Australians die after catching a flu. The concern with the flu is the risk of secondary complications such as pneumonia, bronchitis, croup or middle ear infection, Burns says.
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- This is because people with asthma have swollen and sensitive airways, and influenza can cause further inflammation of the airways and lungs. Influenza infection in the lungs can trigger asthma attacks and a worsening of asthma symptoms. It also can lead to pneumonia and other acute respiratory diseases.
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Information for Schools Recommend on Facebook Tweet. Influenza (also known as “flu”) is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness, and at times can lead to death. This page provides resources about flu symptoms, complications, and diagnosis.
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Flu (Influenza) The flu (influenza) is a contagious respiratory disease caused by flu viruses. It is spread from person to person by coughing or sneezing. It can also be spread by touching contaminated surfaces. Symptoms of flu include fever* or feeling feverish/chills, cough, sore throat, runny or stuffy nose, muscle or body aches, headache, and tiredness. Nausea, vomiting, and diarrhea also can occur but are more common in children than adults.
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- Type A influenza virus is the most virulent form of influenza and the one that causes the most severe illness. This virus often originates in populations of wild birds, poultry, or swine (including pigs and hogs), so different strains are sometimes referred to as avian (bird) or swine flu.
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Flu (Influenza) | Causes, Symptoms and Remedies Flu, or influenza, is a viral illness that occurs predominantly in the winter months. It is easily confused with the common cold, which is caused by a different virus. Influenza viruses can infect the nose, throat, sinuses, upper airways and lungs.Flu spreads easily from person to person, through droplet distribution when an infected person coughs or sneezes or, quite commonly, by hand-to-hand contact.t is easily confused with the common cold, which is caused by a different virus. Influenza viruses can infect the nose, throat, sinuses, upper airways and lungs. Flu spreads easily from person to person, through droplet distribution when an infected person coughs or sneezes or, quite commonly, by hand-to-hand contact.
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Influenza Influenza, commonly known as the flu, is an infectious disease caused by an influenza virus.[1] Symptoms can be mild to severe.[4] The most common symptoms include: a high fever, runny nose, sore throat, muscle pains, headache, coughing, and feeling tired. These symptoms typically begin two days after exposure to the virus and most last less than a week. The cough, however, may last for more than two weeks.