You can see an NSF media release about the review here: http://www.nsf.gov/news/news_summ.jsp?cntn_id=124286&org=NSF&from=news
Ellen works for the U.S. Army Public Health Command at Aberdeen Proving Ground in Maryland. One of her roles there is to help implement the DOD Human Tick Test Kit Program, which is a tick identification and polymerase chain reaction (PCR) testing service for ticks that have been found biting military personnel, dependents, and DOD civilian employees.
Through this program, Ellen has amassed a unique dataset on the species ID and pathogen status of >25,000 ticks removed from humans. Ellen's data reveal a strking shift in which tick species is most likely to attack humans in southern vs northeastern states.
Here are photos of Ellen (Photo 1) and her team hard at work identifying and testing ticks (photos courtesy of the US Army Public Health Command). Thanks for all your contributions, Ellen!