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Check nowAlthough the development of the immune system begins in the womb, the first contact with pathogens takes place after birth. Compared to the defences of an adult, however, the child's acquired immune system lacks experience with foreign antigens. In addition, the innate immune system is not fully developed at the time of birth.
Author: Dr. Silke Kerscher-Hack
In the first period after birth, maternal antibodies protect the babies from pathogens. This so-called nest protection fades after about three months. During this time, however, the child's organism works on its own immune defence: with each contact with a pathogen, the child's defence system gets to know a new germ and finds a way to render it harmless. Upon renewed contact with the pathogen, lymphocytes (a subgroup of the white blood cells) remember the pathogen, and the immune system can fight it off faster and in a more targeted manner.
An infection therefore always occurs when the pathogen is (still) unknown to the body's defences. The child's immune system therefore needs coughs, colds and sore throats. Only in this way can the body's defences develop. An immune system cannot learn anything in an environment where perfect hygiene is constantly observed.
When children get one cold after another, parents often worry a lot. However, the increased occurrence of simple viral infections that heal again without complications are not an indication of immune deficiency, especially if the child has frequent contact with other children (e.g., in a day care centre). An increased susceptibility to colds, which is indicative of an immune deficiency, only exists when
The term 'immunity' refers to the insensitivity (resistance) of an organism to external attacks such as those by viruses, bacteria or fungi. Immunity therefore means protection against infectious diseases. It is composed of innate and acquired (adaptive) resistance:
This defence memory is also the reason why people contract some diseases, such as measles, only once in their lifetime. However, resilience is not necessarily linked to these specific mechanisms: the canine distemper virus, for example, which is closely related to the measles virus, does not cause disease in humans at any time. This immunity is based on innate, non-specific resistance. In this process, the pathogen is recognised as foreign on the basis of certain surface structures, and rendered harmless. Humans are therefore immune to some pathogens from the beginning, and can acquire immunity to others.
In cases of increased susceptibility to infections due to a congenital or acquired immune deficiency, the paediatrician will initiate a well-reviewed treatment procedure. In normal development, medicinal measures to strengthen the immune system are not necessary, as the child's immune system - just like other organs - grows and matures. The immune system is trained and strengthened for later.
Immune-boosting agents can strengthen the defences of adults, but can be dangerous for children. For example, garlic is taboo for children younger than 10 months. Honey must not be given to children under one year of age. The use of food supplements should also be discussed with a paediatrician before the first dose.
In addition to microbiological therapy, which is intended to rebuild damaged intestinal flora, phytotherapy and certain methods such as traditional Chinese medicine (TCM), Schüssler's biochemistry, or nutritional therapy approaches can be used to strengthen the immune system. In addition to the complaints, homoeopathy also takes into account the specific mental and constitutional conditions (concerning the physical disposition and mental structure).
Before using phytotherapeutics, i.e., (fresh) plant extracts, the paediatrician should be consulted. Remedies that may be appropriate include:
Congenital (primary) immunodeficiencies are very rare - about one child in 10,000 is affected. In these cases, the body's own defence system does not function adequately, which is why it cannot ward off pathogens such as bacteria, viruses, fungi or parasites. Typical signs are:
The cause of a congenital immunodeficiency is a genetic defect - the immune deficiency is therefore inherited. Such a defect can occur immediately after birth, but also later in life. In contrast, acquired (secondary) immune deficiencies are caused, for example, by infectious diseases (e.g., measles), tumour diseases (e.g., leukaemia) or drugs (e.g., immunosuppressants that suppress the immune system).
In the case of a cold, a visit to the doctor is advisable if
During the cold season in autumn and winter, viruses and bacteria are very apparent. They feel particularly comfortable in the low temperatures and multiply quickly. In addition, wet and cold weather and fluctuating temperatures put a great strain on the child's immune system. Heating in living rooms further irritates the mucous membranes in the respiratory tract and dries them out. The consequence is a poorer removal of pathogens - the children are more susceptible to infection. Psychological and physical stress, lack of sleep or a lack of nutrients further weaken the immune system and lead to one inflammation chasing the next.
Child health can be supported by simple measures:
Already during pregnancy, expectant mothers can do a few things to strengthen the immune system of their unborn child by
The basis for a well-functioning immune system is a varied, balanced diet with plenty of fruit and vegetables, according to the food pyramid. Only with the right mix of nutrients can the child's immune system optimally ward off pathogens. The following vitamins and minerals are particularly important for a strong defence:
However, the largest part of the immune system is located in the intestine. The function of these defence cells depends, among other things, on the intestinal bacteria. For this reason, children benefit from a well-nourished intestinal flora. Fibre from whole grain products or vegetables, so-called prebiotics, serve as food for these microbes and should therefore not be missing from the diet. Likewise, dairy products with live bacteria (probiotics) and fermented foods such as sauerkraut support a strong immune system by providing a positive intestinal environment.
Internet:
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PDF:
Deutsche Gesellschaft für Kinder- und Jugendmedizin: Mein Kind hat ständig Infekte... (2018), https://www.dgkj.de/fileadmin/user_upload/images/Elternseite/Elterninformationen/DGKJ_Infekte_18.pdf
Liese: Das infektanfällige Kind, Z. Allg. Med. 2003; 79:483 – 489. https://www.online-zfa.de/fileadmin/user_upload/Heftarchiv/ZFA/article/2003/10/10.1055-s-2003-43443.pdf
Books:
Kayser, Bienz, Eckert, Zinkernagel: Medizinische Mikrobiologie, Thieme, 10. Auflage (2001)
Naturmedizin für Kinder, Zabert Sandmann, 1. Auflage (2005)
Mayatepek: Pädiatrie, Urben & Fischer, 1, Auflage (2007)
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Take our quick quiz to discover just how healthy your immune system is, as well as some useful information about your general health and wellbeing!
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