They cited the need for risk consciousness and the likelihood of improved prevention and screening behavior as known reasons for their support. Individuals were surveyed when they received their genetic test outcomes and again two years later; their attitudes remained stable over that period. ‘Developing guidelines for genetic examining of minors is complex and controversial,’ says Leachman. ‘But understanding of their genetic position may help them make suitable lifestyle decisions. For example, a child who tested positive might decide never to choose a summer job that demands plenty of sun exposure, such as lifeguard.’ Generally, genetic testing of children is recommended only when a clear benefit to the young child will result.But until we can positively identify that this might have an advantageous effect, advocating that everyone should adopt these approaches would be inappropriate. Encouraging changes in lifestyle which could increase contact with Old Friends is a huge challenge and may likely meet with opposition, without better quality evidence of a genuine health benefit. Do you want to make any further feedback? I believe it is vital to bear in mind that although it appears that microbial exposure is a fundamental element in increasing the risk of these allergic and additional inflammatory diseases, it is not the only factor.