Answer Happy

Question 7 (1 point) In the student's health clinic of a certain university, 140 cases of foot-hand-mouth disease were identified among the undergraduate students. This viral infection is usually mild, and none of the students got any complication. Because it is rare to observe this condition in people older than 10 years, the university reported their findings to the city's health department. Three officers were sent to the university to interview and examine all the infected students and their contacts. By sending the three officers, what type of surveillance was implemented by the city health department in response to the university's report? Passive Active Sentinel Systematic