What harm does influenza cause to our body?

If the weather suddenly turns cold, the next day you start to have a runny nose, your body temperature will rise, you will have an abnormal fever, you will have a bad cough at night, and you will not be able to sleep. Will cause more serious consequences?

Influenza has a rapid onset, with dry throat, itchy throat or burning sensation at the initial stage, sneezing, nasal congestion, and watery nasal discharge at the same time or several hours after the onset, and thickening after 2-3 days. It can be accompanied by sore throat, sometimes due to hearing loss due to Eustachianitis, tearing, slow taste, poor breathing, hoarseness, and a small amount of coughing. Generally, there is no fever and systemic symptoms, or only low-grade fever, malaise, mild chills and headache.

      Complications are dangerous:

      Influenza can cause many complications, especially for the elderly and children. The complications of influenza are serious, far exceeding the harm to people's health caused by the influenza itself. Influenza complications mainly include influenza complicated by pneumonia, myocarditis, meningitis, otitis media, and bronchitis. Influenza complications can greatly prolong the medical history, and the elderly may even be at risk of death when they develop pneumonia.

      Wide range of infection:

      In addition to infecting humans, influenza A viruses can also infect birds, pigs, horses and marine mammals. Influenza A virus is prone to mutation, and the magnitude of its mutation directly affects the scale of the influenza epidemic. If the mutation amplitude is small, it will only cause a local epidemic: if the mutation amplitude is large, a new virus subtype will be formed.

The greatest harm of influenza is the sudden onset, highly infectious, and it is easy to induce serious complications. Influenza can aggravate or worsen chronic diseases and endanger life; in addition, pneumonia caused by influenza is more harmful to the health of patients with chronic diseases. Chronic diseases that are more sensitive to influenza include: diabetes, cardiovascular disease, kidney disease, asthma and immune system diseases. Influenza and pneumonia are one of the most important causes of chronic disease death in winter and spring.

      Influenza poses a greater potential hazard to the health of the elderly. The elderly are high-risk groups for influenza. The incidence of influenza among elderly people over 60 is second only to preschool children, at about 30%. In places where the elderly are relatively concentrated, such as nursing homes, the incidence rate can be as high as 40-50%. The elderly vaccinated against influenza can avoid other serious complications caused by influenza infection.