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
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