Oak processionary posed a health threat. In April 2018, an outbreak of the caterpillars was reported across Greater London and surrounding areas. The moth is now fairly common in Belgium, notably in the Campine but also elsewhere, with fluctuating population numbers from year to year. In 2007 infestations in the Belgian province of Limburg were so acute that soldiers were deployed to burn them. In the Netherlands, the caterpillars are dealt with by biological pest control. Local authorities use, like in Germany, fluids containing bacteria that are toxic only to the caterpillars. These fluids are sprayed onto the infected trees. Furthermore, an
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