What medical problems are associated with cockroach infestations?

• A. Cause direct paralysis
• B. Produce allergens and cause allergic reactions and asthma
• C. Don't affect health
• D. Improve immune function

Answer: (B)

Cockroach infestations affect indoor air quality through their allergens. Proteins from cockroach feces, saliva, and shed body parts become airborne and can be inhaled. Repeated exposure sensitizes the immune system and commonly leads to allergic reactions such as runny nose, itchy eyes, and skin symptoms, and it is a major trigger for asthma, especially in children and in crowded urban settings. Because of this, the most accurate choice is that cockroaches produce allergens and cause allergic reactions and asthma. They do not cause direct paralysis, they do affect health, and there’s no basis for claiming they improve immune function.