21/04/2026
1- Cockroaches can trigger asthma
Cockroach allergens are associated with asthma morbidity, especially in children living in urban homes.
Citation: Rosenstreich, D. L., et al. (1997). The role of cockroach allergy and exposure to cockroach allergen in causing morbidity among inner-city children with asthma. New England Journal of Medicine, 336(19), 1356–1363.
2- Mosquitoes spread dangerous diseases
Mosquitoes transmit malaria, dengue, Zika, chikungunya, and West Nile virus.
Citation: World Health Organization. (2025). Vector-borne diseases.
3- Rodents spread disease through urine and droppings
Rodents can spread hantavirus, leptospirosis, and salmonella.
Citation: Centers for Disease Control and Prevention (CDC). (2024). Rodents.
4- Dust mites worsen allergies and asthma
Dust mites are a major indoor allergen linked to asthma symptoms.
Citation: American Lung Association. (2024). Dust mites.
5- Ticks spread Lyme disease
Ticks can transmit Lyme disease and other bacterial infections.
Citation: CDC. (2025). Lyme Disease.
6- Bed bugs can affect mental health
Infestations are linked to anxiety, insomnia, and stress.
Citation: Goddard, J., & deShazo, R. (2012). Psychological effects of bed bug attacks. American Journal of Medicine, 125(1), 101–103.
7- Fleas spread bacteria and parasites
Fleas can transmit plague and murine typhus.
Citation: CDC. (2024). Fleas.
8- Houseflies spread germs
Flies mechanically transfer pathogens onto food and surfaces.
Citation: World Health Organization. (2019). Houseflies as vectors of disease. WHO sanitation reports.
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