The University of Pennsylvania's HIV Prevention Research Division, also known as Philly Vax, is one of the 17 sites throughout the country where the study has been in progress for nearly two years. The current target for nationwide participants is 2,200 - at Philly Vax, that number is 118. None of the sites, however, have reached full capacity and are eagerly looking to accept new participants.
Ummm after 2 years only 118 people have volunteered. what does this say?