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
Animal Health Trust Both clinics have active clinical research programmes. Together with the diagnostics and DNA testing services, the clinics work closely with its research teams to further scientific developments and achievements. Both clinics are core to fulfilling its educational objectives. The above activities are underpinned by the AHT’s fundraising and central support teams. Central support incorporates directorate, finance, information technology, human resources and estate and premises management. The AHT was founded in 1946 as the "Veterinary Education Trust" by Walter Reginald Wooldridge; it was renamed the "Animal Health Trust" in 1948. Animal Health Trust The Animal Health Trust (AHT) is a large