Is fever contagious Is the flu still contagious after a fever

Look at the nature of the cold. If it's a general cold, it won't, if it's your own flu infection. There are many types of flu, so there is no need to panic.

The air we breathe every day is inherently filled with bacteria, viruses, fungi and other pathogenic bacteria, which continue to enter our nasal passages through our breathing. But in general, the detoxification system of the nasal cavity itself is able to transport pathogenic bacteria to the nasopharynx within 15 to 30 minutes, and eventually enter the stomach to digest them. At this time, the amount of virus is always within the range that the nasal immune system can handle, so we don't get sick.

However, when triggers such as cold, rain, etc., can reduce the detoxification function of the nasal cavity, the virus can stay in the nasal cavity for a long time. At this point, the virus can multiply in a number that the nasal immune system cannot handle, and the virus invades the body in a big way, and we catch a cold. Later, when the base of the virus in the nasal cavity is larger, the number of viruses grows faster, so a large amount of virus begins to spread to other parts of the body, and this is when the systemic symptoms of a cold begin to manifest.

Therefore, when it comes to colds, the nose acts as a base camp for the virus. As long as we continue to rinse our nasal passages with warm salt water to clear a large amount of virus out of our nose, less and less viruses will invade the human body. Eventually, the number of viruses in the nasal cavity can be reduced to what the nasal immune system can handle.

At the same time, the body's immune system will quickly kill the virus that enters the body.

Therefore, buy a nasal wash pot yourself, rinse your nasal cavity with warm salt water when you have a cold, and try to keep there no excess nasal discharge in your nasal cavity, which can fundamentally solve the virus problem. Use this method to catch a cold within 2 to 4 days** without taking any medication. Washing your nose in the morning and evening can prevent colds to a large extent and greatly reduce the chance of catching a cold.

In this way, after the cold is cured, the number of nasal washes will be reduced to morning and evening washing, so that the nose can be slowly conditioned, **rhinitis.

If it is caused by a virus** infection, the fever must be infectious. If it is a fever caused by bacterial infection, it will not cause contagiousness.

Some bacterial infections can be transmitted to others, so if it is a fever caused by a bacterial infection, is it contagious?

Bacterial infections are contagious and can cause infections of the respiratory, digestive or urinary tract. Bacterial infections of the respiratory tract are more common than acute upper respiratory tract infections. It mainly causes bacterial pharyngeal-tonsillitis, mostly caused by hemolytic streptococcus, followed by Haemophilus influenzae, Streptococcus pneumoniae, and staphylococcus.

Fever caused by bacterial infection has an acute onset, obvious sore throat, chills, fever, body temperature can reach more than 39 degrees, examination shows obvious pharyngeal congestion, tonsil enlargement, hyperemia, yellow punctate exudate on the surface, submandibular lymphadenopathy swelling and tenderness, and no abnormal signs in the lungs.

Fever caused by a bacterial infection can be transmitted through the air through the patient's breathing. If it is a bacterial infection of the digestive tract, mainly acute gastroenteritis, it can be transmitted through diet, that is, eating with a patient with acute gastroenteritis, it may be transmitted through saliva.

Reading guide]: Recently, the winter influenza virus has quietly transformed into a H1N1 influenza, we all know that influenza is contagious, so will it be contagious a few days before the fever subsides? How long is influenza A infectious? Let's take a look with me.

can be contagious. Fever is one of the basic symptoms of influenza A, and influenza is contagious.

Even if the influenza A virus in the body is not completely eliminated after the fever has subsided, there is still a virus in the respiratory droplets, and it will continue to multiply in other people's bodies when it encounters a suitable individual! The general contagion period of influenza is about 7-10 days, and it is not contagious after that.

When a person gets influenza A, they develop antibodies, but these antibodies disappear soon. More critically, influenza A viruses are constantly mutating, and the body has no natural immunity to the re-epidemic of mutated viruses. This is also the difficulty of human beings not being able to develop effective vaccines.

Chief Physician Zhang Zhilun, Deputy Director of Tianjin Center for Disease Control and Prevention and a well-known public health expert. He said that influenza A is contagious one day before the onset of the disease, and usually the fever is basically reduced after about 3 days of onset, and it is basically cured in 7 to 10 days. Those who are cured within 7 days are generally considered not to be infectious until the 7th day after the onset of the disease; If it takes more than 7 days to recover, it is considered that 24 hours after all the symptoms have disappeared, it is not contagious.

Influenza has both an incubation period and an infectious period. The incubation period refers to the period from infection to the onset of the disease, for influenza A, this time is generally 1-7 days, with an average of 2-3 days, that is to say, after being infected with the virus, the average 2-3 days after the onset of the disease The infectious period refers to the period when the patient is infectious and can be transmitted to other people, the infectious period of influenza A is generally from 1 day before the onset of the disease to 7 days after the onset of the disease, but it is rare to infect others 1 day before the onset of the disease Therefore, theoretically speaking, the last day of the incubation period is infectious, but the situation is rare.

Human infection with influenza A(H1N1) virus ranges from 1 day before the onset of the disease to 7 days after the onset of the disease. Children, especially young children, may have an infectious period of longer than 7 days, and can be treated with systemic antiviral** to improve their own immunity.

It is mainly transmitted by airborne droplets, followed by indirect transmission through virus-contaminated tea sets, eating utensils, towels, etc., and close contact is also one of the ways to spread influenza. The speed and breadth of transmission are related to population density.

Human influenza A infection is not transmitted through the consumption of cooked pork. People infected with influenza A virus are afraid of high temperatures, eating cooked pork will not infect people infected with influenza A, and heating pork to 71 can kill people infected with influenza A virus.

Secondly, people are usually infected with influenza A through coughing and sneezing, etc. Direct contact with a person who has already been infected with influenza A has been shown to infect people with influenza A.

Third, human influenza A infection may also be transmitted through contact with infected pigs, contact with environments contaminated with human influenza A virus, and contact with people infected with influenza A virus.

Influenza fever is contagious and highly contagious, so precautions should be taken during the outbreak season.

The influenza virus itself is highly contagious, and after infection, symptoms of fever appear, accompanied by cough, runny nose, nasal congestion, muscle aches and other manifestations. The outbreak of this virus is generally in winter and spring, and it will reach the peak season of infection in March, and it will be transmitted through droplets, respiratory tract, etc., and the rate of rough disorder is high, especially for people with poor immunity such as the elderly and children.

During the outbreak season, you should take protective measures, do a good job of isolation, try to avoid going to crowded public places, wear masks, and wash your hands frequently to prevent infection. Influenza is mostly caused by viral infections. It is more common in children and the elderly with weak body resistance, and is mainly transmitted through droplets, with acute fever, fatigue, cough, nasal congestion, runny nose and body aches.

In terms of prevention and **, we should pay attention to isolation, avoid going to crowded places, mainly wash hands and wear masks, especially special groups such as the elderly, pregnant women, infants and young children, as well as people with underlying diseases such as chronic diabetes, chronic kidney disease and heart disease, are often susceptible to influenza infection, and can be vaccinated against influenza during the flu season.

Experts pointed out that fever is not contagious, but colds can be contagious, if the child has a fever, parents should not worry, to do a good job of usual dietary care, give children more water, eat more fruits with high vitamin C content, and during this period the diet should be light and easy to digest. If the fever does not go away, you should also go to the hospital as soon as possible.

Can a child's cold and fever be contagious?

Colds are contagious, fever is not contagious, if the child has a fever, you can do some physical cooling first: paste antipyretic patches, drink more water, wipe your body with warm water, if the body temperature exceeds the degree, you can take antipyretics, it is recommended to observe more, if it still can't come down, you have to go to the hospital.

Dietary contraindications in case of cold and fever:

Avoid eating more eggs: eggs are indeed rich in nutrients, but it is not advisable to eat more eggs during fever, because after the protein in eggs is decomposed in the body, it will produce certain extra calories, which will increase the body's heat, aggravate the fever symptoms, and prolong the fever time and increase the pain of the patient.

2. Avoid drinking more tea: Drinking strong tea will keep the brain in a state of excitement, and make the pulse faster, blood pressure higher, and then make the patient's body temperature increase and irritability. At the same time, tea water will affect the decomposition and absorption of drugs, reducing the efficacy of drugs.

3. Don't drink more cold drinks: If it is a fever caused by infectious diseases such as bacterial dysentery caused by unclean food, and the gastrointestinal function declines, drinking more cold drinks will aggravate the condition, and even worsen the condition and endanger life.

Four taboos to eat more honey: during the fever period, it should be mainly to clear heat, not to nourish. Honey is a tonic in the qi nourishment, if you take more honey, the patient's internal heat will not be well cleaned and eliminated, and it is easy to complicate other diseases.

Five taboos to eat more spicy: due to the increase in body temperature and the vigorous metabolism in the body, in this case, eating warm and spicy foods such as ginger, garlic, and chili peppers will help heat with heat, aggravate the condition, and is not conducive to fever reduction and early **.

Fever has not been heard of as contagious.

As soon as a child is sick now, parents rush to see a doctor for their child, go to the hospital, either take medicine and injections or hang up drips. This is not good, and the child will be a sick seedling after a long time. In the future, I will have to deal with medicine every day.

I've heard a very classic sentence.

It is good to take medicine for seven days for a cold and fever, and it is good to take medicine for a week without medicine.

Look at what causes the fever, and the cause determines whether it is contagious. Fever is not contagious, it is related to physical fitness.

Fever is a medical condition that refers to a higher than normal body temperature due to internal causes in the body. Secondly, what is contagion, contagion is the transmission of pathogens from one person or other species to another person or species through various routes. So I guess the question should be whether the pathogen that causes the fever is contagious?

The answer is yes, because some fevers are caused by infectious diseases.

Therefore, it is important to find out whether the fever is caused by an infectious disease, because even a viral fever is not necessarily contagious. And even if it is an infectious disease, it is not necessarily a fever in people with strong resistance.

This is divided into two situations, gastroenteritis caused by ordinary viruses is not contagious, it will only cause gastrointestinal discomfort in patients, fever and other symptoms If it is gastroenteritis caused by Helicobacter pylori, you have to pay attention, Helicobacter pylori has a certain degree of infectiousness, and you want to know if you have it. Helicobacter pylori infection, just check C14.

Fever caused by gastroenteritis is not contagious, acute gastrointestinal inflammation is an acute inflammation of the gastrointestinal mucosa, the main manifestations are nausea, vomiting, abdominal pain, diarrhea, fever, etc., mostly due to improper diet, overeating, eating raw and cold unclean food, not contagious. But in time**, to prevent dehydration.

Fever is a manifestation of the work of the immune system. In the event of bacterial infection, viral invasion, wind chill, etc., the body will heat up to fight off the adverse effects. I didn't have a fever for five years, and this is the reason for a serious illness.

The immune system is already weak and cannot be activated, and the body temperature rises, and the problem is serious. The body's own immune system can't bear the foreign bacteria and viruses in the body, so use the temperature to eliminate the virus! Fever is the body's self-protection!

It's just that sometimes I accidentally burn something useful in my body! (Non-medical student, I don't know why they pushed me this question, I answered by impression).

As long as you haven't had it before, 90% of the time you'll be infected. Unless you're immune strong enough to resist the past.

I don't think it's contagious, because fever is not very serious, and it's not an infectious disease, so it won't be transmitted to the people around us at all, so we must look at it rationally.

Fever is not contagious to people around you. My opinion is that fever is not contagious, but if it is caused by a cold, it will be infected, and if it is a virus, it will be contagious.

If it is a cold caused by a virus and the fever is likely to infect the people around us, we should keep some distance from each other at this time to avoid being infected.

I don't think fever can be transmitted to anyone around me. Because fever is only a symptom of oneself, it will not be infected by others.

Fever is caused by the invasion of external bacteria into the body, and the body responds, and if the person around you has weak resistance, it is easy to be infected with bacteria, resulting in fever.

Fever is not contagious, but it does not rule out the infection of fever caused by other **, just like the first symptom of the new coronavirus is fever, so it is still necessary to check it in time**.

Fever is generally not contagious, but if your immunity is not good, and you are in an environment, this is possible.