Experienced public health staff interviewed case-patients at the time of diagnosis and used a standardized questionnaire to determine symptoms, hospitalization status, and oseltamivir use.
We interviewed case-patients with laboratory-confirmed infection and all household members about the occurrence of illness, receipt of influenza vaccination in the previous 12 months, and medical history.
Trained social workers interviewed case-patients and controls using a standardized questionnaire that included demographic information, specific behaviors and activities in the 6 months prior to the case-patient hospital admission date.
To identify and register contacts of persons infected with EVD, prefecture public health officials and ETU staff interviewed case-patients, their families, and community members and documented resulting information on standardized contact registration forms (6 ).
New York investigators reported that 57% of M. bovis case-patients were born in Mexico, and 83% of the interviewed case-patients consumed unpasteurized cheeses produced in Mexico while living in the United States (12 ).
The two cities' health departments interviewed case-patients with standardized questionnaires, conducted sanitary inspections of implicated food service establishments, interviewed and tested food workers, and analyzed food and environmental samples.
CF interviewed case-patients 1 3 again, and they reported having knife wounds after preparing lambs for the religious feast and seeing lesions on the gums and tongue of 1 lamb.
