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
International Volcanic Health Hazard Network on preparing communities for eruptions and works closely with humanitarian agencies such as the Pan American Health Organization. IVHHN also administers the Hawaii Interagency Vog Dashboard, an online portal for information about volcanic emissions from Kilauea volcano. IVHHN was cited, by Forbes Magazine, as being an excellent source of information during the 2018 eruption crisis at Kilauea volcano, Hawaii. International Volcanic Health Hazard Network The International Volcanic Health Hazard Network (IVHHN) is an organization that provides research and information on the health hazards and impacts of volcanic eruptions. IVHHN work covers a range of research areas including volcanology, toxicology, public