Man Becomes Bed Bug Immune After Millions of Bites

An entomologist, Dr. Richard Naylor, has dedicated 25 years to studying bed bugs, claiming to have developed immunity after being bitten millions of times. He breeds approximately 60,000 insects, using himself as a host to test pest control products and new devices. Dr. Naylor conducts 'feeding days' twice a week, allowing the bugs to feed on his arms while he works. For more rigorous testing, he sleeps in a self-contained suite infested with bed bugs to evaluate the efficacy of sprays and repellents in realistic conditions. He explains that the bugs' natural behavior is essential for accurate product testing, as they are triggered by human presence, body heat, and carbon dioxide.

Dr. Naylor operates a not-for-profit business called the Bed Bug Foundation in the Forest of Dean, Gloucestershire, with his wife Alexia. Their work involves producing research and conducting product trials for the pest management industry, often sending bred bugs to canine detection teams globally. He notes the significant fear bed bugs induce, often exceeding concerns about diseases like malaria. While most people experience itchy welts, Dr. Naylor no longer reacts to the bites, estimating immunity develops after around 40,000 bites. He highlights that bed bug infestations have a profound impact on mental health, leading to isolation and feelings of disgust among sufferers.