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
Canadian Science Centre for Human and Animal Health labs are built as a box-in-a-box; they do not border exterior walls and there are mechanical spaces above and below them. CSCHAH is a high-security facility. Security staff work closely with local police, RCMP and CSIS to ensure an appropriate level of security at all times. Only the lobby area is open to the public; all guests must be escorted within the secure area at all times. All staff working in the facility have Secret Level II security clearance. The Community Liaison Committee to the Canadian Science Centre for Human and Animal Health was struck by the ministers of Health