What is the difference between the flu symptoms and fever?

Many people in the autumn or spring complain of chills, fever, runny nose and other symptoms, which they very often confuse, taking for another disease. But there may be an acute respiratory viral infection, as well as influenza or acute respiratory disease. Precisely to diagnose only an experienced specialist, but it does not hurt and the patient himself to learn about the distinctive features of these ailments.

Detailed division by action on the body

As a rule, these two diseases differ in symptoms. Flu is characterized by a sharp rise in temperature, which reaches 39 degrees. This temperature can last up to 5 days. In addition, the patient is visited by fever, chills, dry cough. Poor appetite and vomiting. All these manifestations indicate the presence of severe poisoning of the body.

On video, how is the flu differs from ORVI:

If we talk about ARVI, then the deterioration of the patient's condition is observed for 1-3 days, although this can be delayed up to 10 days. The sick do not attend the bright manifestations of the disease. He does not feel as bad as he does with the flu. He raises the temperature to 37.5 degrees, with a pronounced clinical picture of the respiratory tract. The patient has a runny nose, a sore throat, a brief cough.

Table 1 - Difference between influenza and ARVI by symptoms

Flu	ORVI
Initial stage	The onset of the disease is very acute. In a matter of hours he is covered by a wave of symptoms, as a result of which he loses his strength and cheerfulness.	The disease manifests itself gradually, all the symptoms appear for several days.
Temperature indices of the body	It is enough 2-3 hours after the defeat of the body, as the temperature rises to a mark of 39-40 degrees. It can last for 3-5 days, while it is difficult to knock down with the help of antipyretic drugs.	For 2 days the temperature can be kept within 37.5-38 degrees. In this case, it is easy to knock down antipyretic drugs.
General clinical picture	The patient feels broken, he has joint and muscle pains, it is difficult for him to breathe, aches all over his body, sore throat, stuffiness in the ears.	The patient feels broken and weak, but there is no pronounced symptomatology.
Nasal congestion, runny nose	Rhinitis can affect not only people who suffer from chronic diseases of the nasopharynx. It passes in 2 days without complications	Nose lays frequently, there is increased tearing, swelling of the nasal cavity. In addition, the patient sneezes constantly, and the runny nose can last up to a week.
Presence of plaque on the throat mucosa	None	May be
Cough, pain in the chest	After a few days, the patient has an unproductive cough that after 2 days becomes wet. If the swine flu is affected, then the cough worries the patient already at the first stage of the disease.	There is an unproductive and loose cough, which can last throughout the disease.
Lymph node enlargement	absent	Can be
Eye hyperaemia	Often often	Very rarely and then subject to bacterial infection
GI disorders	In small patients, the flu causes nausea and vomiting, and in adults it manifests as vomiting and diarrhea.	Symptoms of gastrointestinal disturbances are rare
Duration of the disease	High temperature will disturb for another 4-5 days. Then it disappears, but the patient still feels broken and tired. Fully flu symptoms leave the body after 19-21 days.	ARVI last no more than a week. In this case, the patient does not attend a feeling of fatigue and weakness.

The main differences between

The main difference between acute respiratory infections and influenza in what kind of pathogen led to the development of the disease. The formation of influenza affects the virus, which is called orthomixovirus. It can be presented in three forms. A lot of attention has been paid to the study of the influenza virus, which allows predicting the dynamics of infection, inventing vaccines and special drugs for the treatment of the flu. But other types of viruses, which include the family of riboviruses, adenoviruses and parainfluenza viruses, can affect the development of ARI.

Table 2 - Difference between influenza and acute respiratory disease in symptomatology

Clinical picture	Flu	ARD
Initial stage of development of	A rapid and incomprehensible jump in body temperature.	All symptoms occur smoothly, slowly. The temperature does not rise sharply and does not have high rates.
Temperature	39-40 degrees	Up to 38.5 ° C
Cough	Cough unproductive, sometimes leads to the development of bronchitis	At first, the cough is unproductive, but after a few days sputum begins to depart.
Headache	Severe and noisy character	Missing or moderate
Myalgia	Strong	absent
Hyperemia of the eye	Characteristic symptom for the flu	Occurs extremely rarely
Catarrhal phenomena	Nasal congestion and hoarseness of the voice for influenza are not inherent.	Nasal congestion and hoarseness are characteristic of
	lymph node enlargement absent	often occurs
Chest pain	Often also has a strong character	Occurs rarely and is of moderate nature

How to distinguish diseases in adults

When infection is given by airborne dropletsand inflicts defeat first thing mucous membrane of the nasopharynx, then this disease is called ORZ.Thus, all inflammations that hit the upper respiratory tract, butu classified ORZ.In this case, various types of microorganisms can affect the development of the disease: viruses, bacteria, anaerobes. Often, acute respiratory infections form against a background of weak immunity after prolonged exposure to cold or after the attachment of a bacterial infection.

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As for ARVI, it is a viral disease that has an acute course and affects the respiratory system. If a bacterium has penetrated the body, it will refer to this group of simple ailments.

And although influenza refers to ARVI, it is isolated as an independent respiratory inflammation. This is due to the fact that the flu contributes to the occurrence of severe complications. Viral infection can mutate, resulting in it and there are epidemics.

On video, what distinguishes Orvi from influenza in adults:

Orthomixovirus can affect influenza development. It can be divided into three types: A, B and C. The development of pathogenic microorganisms occurs very quickly, so that the first signs of pathology can be detected by a person on the first or second day. The clinical picture is very diverse. But the main differences between the flu and ARVI are that there is a high fever and aches all over the body.

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How to distinguish the diseases in children

In order for the treatment to be effective, it is necessary to know how the flu and SARS differ in the child. The first difference is a sharp and high temperature rise. And to knock down her antipyretic drugs is very difficult. For the flu, it is 39-40 degrees. But ORVI is accompanied by a rise in temperature to 38.5 degrees, and two days later it returns to normal.

The following differences consist in the fact that with the flu, the child has a strong body ache, chills, pain in the head and muscles, pain in the sternum during a cough. In other words, the clinical picture has a pronounced character. And with ARVI or ARI, a sneezing and a runny nose is a characteristic sign.

On video, what distinguishes Orvi from influenza in children:

For flu, the common cold is not peculiar. There may be nasal congestion, but after 2 days it goes away. Another difference is gastrointestinal upset. With a common cold, a child does not feel sick, and vomiting and diarrhea are rare, which can not be said about the flu. In this case, there may be vomiting, nausea, diarrhea and other signs of intoxication.

Colds today remain among the most common. But not every person knows, they are all divided into groups such as ARVI, ARI and influenza. Each of them has its own symptoms, the causes of development and the scheme of therapy. Precisely to put the diagnosis under force only to the doctor after diagnostics. Therefore, do not play in the doctor and engage in independent treatment. Perhaps you are treating a completely different disease.