The flu virus can mutate every year. Treatment, Symptoms, types of flu, prevention, high-risk groups for contracting. social impact.

The flu is a disease caused by a virus (called influenza in the scientific world). This virus can change each year, which the body makes it very difficult to establish an effective defense against it.

Flu symptoms

When you have flu, the symptoms are very obvious: it verifies the sudden onset of fever of short duration (three to five days), accompanied by runny nose, inflamed throat and trachea, headache and aching joints and a typical muscle , for which there is effective antibiotic medication is based antipathetic, and Home Remedies.

Influenza virus

Seasonal influenza is an acute viral infection caused by an influenza virus. There are three types of seasonal influenza: A, B and C. The type A influenza viruses are classified into subtypes based on the different combinations of two surface proteins of the virus (H and N). Among many subtypes of influenza A viruses, currently circulating in the human virus subtypes A (H1N1) and A (H3N2). The influenza virus circulating worldwide. C Flu cases are much less common than influenza A or B, and that is why in the vaccine against seasonal influenza virus include only types A and B .


Influenza virus A, B and C have a very similar structure. Viral particles reach a diameter of between 80 and 120 nanometers with a spherical shape, although sometimes they get some kind filamentous exemplary. Although unusual for a virus genome is not a single fragment of nucleic acid but containing seven or eight inverse RNA fragments.

Groups at higher risk of getting the flu

Women in gestation: Children under 5 years, especially those younger than 2 years who have not yet developed their defenses. People over 65 years especially if they have respiratory problems.
People of any age who have chronic respiratory (persistent and long term).

How to avoid getting the flu

· Wash your hands often, especially when it has been in public places.

Avoid contact with people who are infected with the cold, especially when sneezing or coughing.

· Increase the immune system, following a diet rich in vitamins and minerals deficiencies avoiding excessive calories.

· Avoid sudden changes in temperature and especially air currents, particularly cherish feet and neck.

· Ventilate the rooms daily.

· Eat enough protein especially soy, which is rich in glut amine, which will help maintain muscle tone, especially those who play sports.

Effects of influenza in society

Flu can cause serious economic and public health. In developed countries, epidemics can cause significant absenteeism and lost productivity. Clinics and hospitals can be overwhelmed by the large number of patients who come to them during the peak periods of the disease. Although most patients recover from the flu, many need hospital treatment and many die each year from this cause . The knowledge of the effects of influenza epidemics in developing countries are scarce.