Oak processionary the same manner. Oak is its preferred food source, but the moth also eats the leaves of hazel, hornbeam, sweet chestnut, birch and beech. The moths pose an increasing threat to humans as their range is extended. The backs of older caterpillars (3rd to 6th instars) are covered with up to 63,000 pointed defensive bristles, which contain an urticating toxin (e.g., the protein thaumetopoein). The setae break off readily, become airborne and can cause epidemic caterpillar dermatitis (lepidopterism), manifested as a papular rash, pruritus, conjunctivitis and, if inhaled, pharyngitis and respiratory distress, including asthma or even anaphylaxis; however, as of
Health Hazard Evaluation Program employee representative, OSHA, and other agencies. The employer must post this report in the workplace where all employees can view it. Federal laws and regulations provide some protection against possible discriminatory actions in the workplace for employees who request an HHE or participate in an evaluation. If an employee requests it, NIOSH will not disclose their name to the employer. Additionally, the Occupational Safety and Health Act and the Federal Mine Safety and Health Act prohibit employers from punishing employees for reporting a health hazard or participating in NIOSH investigations. NIOSH has completed over 3,000 HHE reports detailing on-site workplace