what is Influenza || how we can prevent from this virus

Influenza (flu) is a respiratory disease caused by influenza virus. Influenza viruses are of two main types (A and B) and there are many different strains of each type. Patients caused by these viruses are often called "flu" as a whole. Influenza sufferers may be from light to very serious, depending on many factors, including viral strain, the age of the patient, and patient's health. Certain groups are in a high-risk condition for the serious complications of the flu.


The symptoms of the flu suddenly emerge and there is fever, shiver, cough, sore throat, pain feeling, headache, and fatigue. Vomiting and diarrhea can occur, but these symptoms are more prevalent in children than in adults.


Influenza spreads primarily through infected respiratory muscles - that is, by air spread through coughing and sneezing. It is important to note that some people who are infected do not see any symptoms (which are called asymptomatic infection), but they are still infectious. They can also infect others while they do not know about their own infection.

Even patients experiencing flu symptoms may be infectious even before one day of feeling it, and stay for a week later. An important fact about the efficacy of influenza is that it is related to its rapid germ related changes.

The new strangers of the influenza virus appear frequently, and the previous infection with any other stroke guarantees protection against further infection. This is one reason that antigens often change every year in the seasonal flu vaccine - so that they can get protection from any existing flu strain.

Treatment and care:

Generally, patients with flu are advised to stay at home and relax, so that they can be healthy and others may not be infected.

 In light conditions, treatment is done to overcome the symptoms of illness: over-the-counter medicines such as acetaminophen or ibuprofen are used to reduce fever and/or get relief in pain or pain and cough Medicines or drops can be taken to reduce lacerations or cough. Drinking extra fluids can prevent dehydration.

 For the serious situation, for people with high risk of complications, physicians can advise antiviral treatment. Although the resistance against many available circulating influenza strains available antivirals has developed. Immunization is the primary way of preventing the flu.


Pneumonia is the most common complication of influenza infection. In particular, it is caused by secondary bacterial infections like Haemophilus influenza or Streptococcus pneumonia. Flu can cause sinus and ear infections, existing health conditions may worsen, such as chronic lung diseases, or heartburn in the heart.

Although some flu patients may experience complications of the disease, certain groups are in high risk condition for flu complications, compared to others: elderly, young children, asthmatics, pregnant women and some people.

what is Influenza

Whose risks are high for complications. In any particular season of flu, people aged 65 or more die due to flu due to 90% of the flu. (The symptoms of some pandemic influenza differ slightly in this regard; In the 2009 H1N1 epidemic, approximately 90% of the deaths of H1N1 influenza were of people under 65).

Available vaccines

Since new strangers of influenza often appear, seasonal flu vaccines change every year. Each seasonal vaccine is often made for several strangers of influenza: two "A" struts and one or two "B" stranges, depending on the vaccine.

From the beginning to the end - From the selection of strains to target with the vaccine - From the production of the final product - Seasonal flu vaccine can take up to eight months in the process. Influenza monitoring centers monitor circulating influenza strains for trends throughout the world. Genetic data is collected and new mutations are identified.

And then the World Health Organization is responsible for the selection of the most similar strence of genetically reassembled Terence, transmitted in the coming flu season. For the summer of Northern Hemisphere, this decision is taken before February.

In some cases, one of the strokes used in the previous vaccine can be selected again, if that stance is continuously circulated. From this point, a vaccine can be developed and produced. After four to five months of selection of strain (in the Northern Hemisphere in June or July), the developed vaccine strains are tested separately for accuracy and effectiveness.

Strangers are only counted in a single seasonal vacuum after testing separately. In the event of an epidemic, any additional vaccine can be developed to provide protection against a particular disease or spread of influenza spreading from the virus. After the selection of the stroke of the seasonal flu vaccine, the requirement of the 2009 H1N1 influenza vaccine was clarified, creating a separate vaccine.

Inactive trivalent or quadrivalent influenza vaccine is the most common flu vaccine available and it can be given to people of 6 months or more. There are some vaccines that are given through injection. Active, debilitating influenza vaccine is available in some countries for people over 2 years and younger than 50 years of age. The active vaccine is given intranasal (in the nose).

Vaccination Recommendations

In some countries, annual seasonal influenza vaccination is recommended for all or many people over the age of 6 months. The World Health Organization encourages countries where risk groups: Implementation of National Influenza Recommendations for providing vaccine for pregnant women, children aged 6-59 months old, elderly person, people with chronic diseases and health care workers Resources exist for  

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