Contact with dogs and farm animals during the first year of life reduces the risk of asthma in children at age 6, according to a study published on 2 November 2015 in JAMA Pediatrics. Researchers reviewed the records of all children born in Sweden between 1.01.2001 and 31.12.2010 – more than 1 million. The contact information for dogs and farm animals, the diagnosis of Asthma, drug treatment, and a family history of asthma have been evaluated. Researchers have assumed that there is contact with animals if, during the first 5 years of the child’s life, the parents have registered that they are dog owners or registered as breeders. The researchers’ hypothesis is that early contact with animals may increase the average exposure to micro-organisms, some of which may increase the risk of respiratory infections while others may modulate the immune system to reduce the risk of asthma.