To identify risk factors associated with influenza A(H1N1)pdm09 among students in Beijing, China, we conducted a case–control study. Participants (304 case-patients and 608 controls, age range 6–19 years) were interviewed by using a standardized questionnaire. We found that in addition to vaccination, nonpharmaceutical interventions appeared to be protective.
All Keywords
【저자키워드】 viruses, pandemic, Risk factors, Influenza, students, China, Beijing, Influenza A(H1N1)pdm09, Influenza A(H1N1)pdm09 virus,
【저자키워드】 viruses, pandemic, Risk factors, Influenza, students, China, Beijing, Influenza A(H1N1)pdm09, Influenza A(H1N1)pdm09 virus,