“A congregate setting is an environment where a number of people reside, meet or gather in closeproximity for either a limited or extended period of time.”

NYC.gov

“After the peak of illness during the second wave had come and gone in the United States. From April 12, 2009 to April 10, 2010, CDC estimated there were 60.8 million cases (range: 43.3-89.3 million), 274,304 hospitalizations (range: 195,086-402,719), and 12,469 deaths (range: 8868-18,306) in the United States due to the (H1N1)pdm09 virus.”

Centers for Disease Prevention and Control (CDC)