Caterpillars pose health threat Published March 22, 2007 By Capt. Maria Sacco 31st Medical Operations Squadron Aviano Air Base, Italy -- It may not be "March of the Penguins," but the lines of caterpillars marching along the sidewalks can be fascinating to adults and children alike. Unlike the movie, however, these caterpillars can pose a health hazard. This threat to well-being involves two types of larvae, caterpillars: the Oak and Pine Processionary Moths. These moths are found primarily in central and southern Europe and throughout the Mediterranean countries, but are beginning to present problems in northern European countries as well. The problem in the Aviano area is the health threat these caterpillars present to humans. This threat was demonstrated last week when several Aviano school children developed an allergic reaction to contact with the insects. When teachers attempted to aid the children by brushing off the caterpillar hairs, they also experienced adverse reactions. The victims were treated at the clinic and the staff wants to alert everyone to the dangers that the caterpillars present. The Oak and Pine Processionary larvae are abundant from April to June; if the winter is warm, the Pine Processionary Caterpillar may emerge throughout the normally cold months. These caterpillars can be identified by their grey bodies and dark heads. As the larvae ages, a dark stripe running down the middle of the back, whitish lines and long white hairs appear on both sides of their bodies. They can be seen on oak and pine trees, either lined up in a procession formation, or in a silky white web spun in the trees about the size of a tennis ball. The caterpillars have numerous silk-like long and short hairs on their bodies that contain a toxin which causes severe irritation or other allergic reactions if it comes in contact with the skin or is inhaled. Contact symptoms may include skin rash, conjunctivitis, and respiratory problems such as asthma or pharyngitis. The Aviano community should follow the following tips: - Don't handle larvae or touch their cocoons. - If exposed to these larvae, remove clothing, shoes and socks and shower immediately; wash clothing in hot water. - Those who have prolonged exposure and allergic reactions should contact their doctor. - If severe symptoms, such as difficulty breathing, are experienced, go to the nearest Emergency Room. - Ensure everyone in your family is aware of the dangers associated with these insects and the course of action to be followed if they come in contact with them. For more information, call Ext. 5000.