Do children need to get the flu vaccine after they have had the flu? The reason why they can still get the flu after being vaccinated

Autumn and winter are the peak seasons for influenza, and many people will be infected if they are not careful. Children have poor immunity and are easily contagious. Many parents think that children do not need to get a flu vaccine after they have the flu, but this is actually a misunderstanding.

Need to fight.

There are multiple influenza viruses circulating at the same time every year, and each influenza virus can cause infection alone, so even if you have the flu, you still need to get the flu vaccine. It is recommended to get the vaccine after the fever subsides and the symptoms of the disease are basically relieved.

1. It takes about 2 weeks for antibodies to be produced after vaccination, and the antibody concentration reaches its highest level after 4-6 weeks. If you are infected less than 2 weeks after vaccination, the protective effect of the vaccine may not have yet taken effect;

2. The strains contained in the vaccine may not be the strains prevalent that year. The influenza vaccine is produced before the influenza season arrives, and is designed and produced based on the prediction of the strains that may be prevalent that year. The strains infected after vaccination may be different from the strains contained in the vaccine, so it may not provide protection;

3. The effectiveness of the vaccine is affected by many factors, including the recipient's own condition (age and health status), the degree of match between the strains contained in the vaccine and the prevalent strains, etc.

4. Some respiratory viral infections can cause flu-like symptoms, which may cause people to mistakenly think they have the flu.

Yes.

Influenza-like illnesses are not caused by a single pathogen from beginning to end. Over time, the influenza pathogen will continue to change and even evolve, so the drug resistance of the influenza virus will become higher and higher. Even patients who have had this type of influenza may be infected again due to changes in symptoms. Therefore, children who have contracted the influenza are still at risk of being infected again, so it is necessary to take preventive measures.

1. People with low immunity are most susceptible to infection, such as children and the elderly, because these people have poor immunity. In addition, lack of exercise, high pressure at work and in life, and irregular lifestyle can all reduce the body's immunity, making them the main victims during the peak influenza season.

2. People with accumulated fire poison in the body Modern medicine believes that influenza is caused by virus invasion. Traditional Chinese medicine believes that the accumulated fire poison in the body is the internal reason for the easy spread of influenza. Many friends who have had influenza or colds have had this experience. Before the onset of influenza, most of them will have some "fire poison" symptoms such as sore throat and swollen gums. At this time, the body's immunity is often low, and it will be easy to be infected with influenza virus, with symptoms such as fever, sneezing, runny nose, etc. If you have been a little "hot" recently, you should use medicine early to prevent the influenza virus from infecting you.

3. Frequent visits to crowded places. Influenza viruses are transmitted through the air. Crowded and enclosed places have turbid air, and the probability of viruses existing in the air is high and the concentration is high, which provides convenient conditions for the spread of viruses. Therefore, during the influenza epidemic, you should try to avoid taking flights, air-conditioned trains or buses, and avoid going to large hotels or shopping malls with central air conditioning.