Children who are conceived in our latitudes in winter and were born in autumn appear to have a greater risk to suffer from asthma than children who come to another season on the world. It was found in the results of a study involving over 95,000 children to have that were born between 1995 and 2000.

Most at risk are children who are conceived in December or January and then in about four months before the climax of the annual cold and flu outbreaks of the winter semester of seeing the light of day. In addition to genetic factors which determine whether a child prone to asthma or not, so obviously play well cold and flu viruses, which occur most frequently during the winter, play an important role.

Hartert thought that a hereditary tendency to asthma by severe viral infections is enhanced and promoted. It was already known that severe inflammation of the bronchi increase in childhood asthma risk. It develops an asthma appears to be concentrated among those children who have been through in the first six months of life, a severe respiratory infection. Until the age of six months, babies are particularly vulnerable because their immune system is still immature, but rely on the defense against infection at the maternal antibody is circulating since pregnancy in the child’s body.

Precautions for pregnant

Best to try to establish a due date it will be difficult, especially since not even can predict exactly when the annual Virus wave reaches its peak in the winter. However, parents can consider to have children, a number of precautions when asthma in families and should exist in order for the offspring at an increased risk of asthma. If the birth can not move right from the start to another season as the autumn, the expectant mother should absolutely make sure that it is supplied with enough vitamin D to their immune system – and thus also that of her child during the first months of life — to strengthen. This can be a fish-rich diet and daily walks in the sun or by supplementation with vitamin D supplements. After the birth mothers, simple hygiene measures such as frequent hand washing should follow in order to prevent contact with the baby transmission of viruses and infections of the child as much as possible.