Asthma
Bugs: different types of bugs which may be found inside homes may trigger asthma attacks. They may trigger asthma symptoms in the same way as pets; the proteins they give off are allergens and  become airborne. Some of the more common bugs which may trigger asthma are dust mites, cockroaches and also bedbugs and fleas. Many other species that may infest a home may serve as a source of allergens such as Pharaoh ants.