When the first symptoms of flu appear

When do the first symptoms of flu appear?

Influenza: signs, infection, variations

Under this disease is commonly understood as an acute infectious disease that is caused by the influenza virus. The virus itself is included in the group of acute respiratory viral infections - acute respiratory viral infections. Nowadays, more than 2,000 species of this virus have been identified, all of which differ in antigenic spectra. Quite often, this disease turns into an epidemic.

Flu virusesIn everyday life, the word "flu" means almost any disease of ARVI, which is not always true. Nowadays, there are over 200 types of other respiratory viruses that can cause similar symptoms. These include reovirus, coronovirus, parainfluenza, rhinovirus and others.

All these diseases are characterized by acute intoxication of the body and the following symptoms:

  • swelling of the mucous membranes;
  • runny nose;
  • temperature rise;
  • cough.

When symptom mixing occurs, complications can occur in the future.The most common complications are angina, pneumonia and bronchitis.

Incubation period

In the first few days after penetration into the human body, the virus does not appear. That is why you just need to know how much the incubation period of the flu is. And this will allow, first, to start timely treatment, and, secondly, not to infect the surrounding patient.

The average incubation period lasts about 3-5 days. At this time, a person can not guess that he will soon get sick. This period also depends on the general condition of the person and how much virus has entered the body.

So, if a person is healthy and has strong immunity, then the incubation period will be 4-7 days, but if the immunity is weakened, then 2-4 days.

A man sneezes on a woman sitting next toSARS virus multiplies at high speed. And a few days after infection, it is quite possible still not knowing about the disease, a person can infect others. It will not pose a danger to other people in a week.

Signs of SARS appear suddenly, immediately after the end of the incubation period.

The main features are as follows:

  • headache;
  • high temperature;
  • sore throat;
  • feeling unwell;
  • fatigue;
  • runny nose;
  • cough.

The patient may be infected in a few days after the start of the incubation period. During the course of the disease, a person will be contagious for 5–10 days, although after 4 days the power of the spread of the disease is noticeably weakened.

As for small patients, they can infect even longer than 10-12 days after the onset of the disease, like some people with immune system problems.

Types of flu

The most common infection of ARVI occurs through airborne droplets, which greatly simplifies the entire process of infection. After all, it is enough just to spend some time in the company with the patient, and infection will come.

By keeping the conversation going, coughing and sneezing, the patient creates an infected field around him, endangering others. That is why it is very important to be able to identify the patient.

There are several types of the disease:

  1. Easy form. In this case, the temperature does not rise above 38 degrees, and other symptoms and signs almost do not bother the person.
  2. Medium shape. In this case, the temperature does not rise above 39.8 degrees.Symptoms of moderate severity: muscle pain, headache, cough, aches, lethargy.
  3. Heavy form. As a rule, the temperature rises above 40 degrees, and such symptoms as vomiting, convulsions, nosebleeds and even hallucinations may be added to the signs given in the average form of the disease.

For two to three weeks after recovery, the person is not recommended to overload the body too much. During this period, may be present headaches, weakness, insomnia.

Swine flu: what is it?

Sign with formula of swine fluSwine flu - ARVI, which is caused by pandemic type A virus (H1N1), transmitted from pigs to humans. For this disease is characterized by severe, respiratory syndrome and the possibility of death.

The source of the disease are sick people and pigs. A person becomes contagious a day before the first symptoms appear. It is transmitted to ARVI in the following ways:

  • airborne;
  • contact-household.

The risk group includes children under 6 years old, pregnant women, the elderly, people with concomitant diseases.

The incubation period for swine flu ranges from 2 to 5 days.

The first symptoms of this disease - intoxication, expressed by fever, weakness, nausea, muscle pain.A distinctive feature, when compared with seasonal flu, is persistent nausea, impaired stool (such signs are observed in 40% of patients).

Severe forms of this disease are manifested by severe pains of the head, eyeballs, which can lead to meningitis, encephalitis. Another dangerous complication is pneumonia (primary and secondary).

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  • When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear

    When the first symptoms of flu appear