the introduction

What is influenza? Influenza is a contagious viral respiratory disease that causes symptoms such as fever, cough, and congestion. The virus spreads rapidly, especially in the winter, making it a major public health issue. History of influenza The history of influenza spans centuries, with the first documented outbreak occurring in the 12th century. Since then, there have been numerous pandemics, including the 1918 influenza pandemic that killed millions of people worldwide. Experts now hope that improved awareness and vaccinations will help reduce the impact of influenza in the future.

Causes of influenza

Types of influenza virus There are several types of influenza virus, including type A and type B. Type A is the most common and can be transmitted between humans and animals, while type B mainly affects humans. Each type has different strains, which makes it possible for them to spread and cause epidemics. Effect of influenza on the respiratory system Influenza mainly affects the respiratory system, causing inflammation in the airways. This can worsen pre-existing health conditions such as asthma and heart disease. Therefore, it is important for everyone to take the necessary precautions, such as vaccination, to reduce the risk of infection and potential complications.

Flu symptoms

Fever and high temperature are the most prominent symptoms that accompany influenza infection, as the temperature can rise to 38 degrees Celsius or more. Fever is an indicator of the body's response to the infection, and is accompanied by a feeling of fatigue and exhaustion. Cough and nasal congestion also suffer from dry cough and nasal congestion, which makes it difficult for them to breathe comfortably. These symptoms may develop to become more severe if the necessary measures are not taken, such as rest or taking appropriate medications to relieve the symptoms.

How is influenza transmitted?

Transmission Methods The influenza virus is highly contagious, and can be transmitted through droplets produced by coughing or sneezing of infected people. The virus can also be transmitted by touching contaminated surfaces, such as handles or tables, and then touching the face. Incubation period The incubation period of the influenza virus usually lasts from one to four days. This means that a person may be carrying the virus and able to transmit it to others before symptoms appear, which increases the likelihood of the infection spreading quickly.

Flu prevention

Flu Vaccinations Vaccinations are one of the most effective ways to protect against the influenza virus. People are advised to get vaccinated annually, as the virus adapts every year, which requires updating the formula. The vaccine helps strengthen the body's immunity and reduces the chances of contracting the virus. Daily preventive measures In addition to vaccination, it is important to follow a set of daily preventive measures. You should wash your hands frequently with soap and water, and avoid being close to people who have flu symptoms. It is also preferable to use a tissue when coughing or sneezing and throw it in the trash immediately.