If you have a pet as a kid, does this lower your risk of asthma and eczema?
- Written by Samantha Chan, Immunology and Allergy Lead, Snow Centre for Immune Health, WEHI (Walter and Eliza Hall Institute of Medical Research)

As the number of people with allergies grows worldwide, scientists are trying to work out precisely how and why these conditions – such as asthma and eczema – develop.
One long-standing idea is the “hygiene hypothesis”. This suggests our modern indoor lifestyles are to blame, as they limit our...