Pest Organisms / Smokybrown Cockroach
Risks
The main concern is health, not structural damage. Extension specialists treat cockroach shed skins, body parts, and droppings as allergens, and a reaction to that material is the leading medical problem these insects cause. Source: https://hgic.clemson.edu/factsheet/cockroach-control/ Source: https://ask.ifas.ufl.edu/ig082
Those allergens can set off allergic reactions and asthma; extension sources tie indoor cockroach populations to asthma in children, and note that severe attacks can be fatal. Source: https://ipm.ucanr.edu/PMG/PESTNOTES/pn7467.html Source: https://ask.ifas.ufl.edu/ig082
On food safety, roaches foul food and the surfaces they crawl over, and extension sources report that they can spread food-poisoning bacteria, Salmonella among them. Source: https://ask.ifas.ufl.edu/ig082 Source: https://ipm.ucanr.edu/PMG/PESTNOTES/pn7467.html