Effectiveness of the Influenza Vaccine 2016-2017 Against Seasonal Infection in Japan
[1]
Jin-Ichi Sasaki, Junior College Emergency Medical Technology, Hirosaki University of Health and Welfare, Hirosaki, Japan.
[2]
Toshiko Nakajima, Health Care Center, Hirosaki University of Health and Welfare, Hirosaki, Japan.
Influenza vaccinated students at the University in Japan were subjected for evaluation of effectiveness/ineffective studies. Vaccine 2016-2017 was consisted of the influenza A (H1N1, H3 N2) viruses and influenza B (Yamagata, Victoria) viruses. Influenza A viruses were predominantly circulated at that period in Japan. All 39 students were vaccinated as a group in autumn, and the vaccinated twenty seven students were protected from Influenza illness at 70% rate (27/39) by 4 valents vaccine, and the rest 30% (12/39) were infected with influenza virus. Influenza A viruses were isolated from 11 students (91.6%) and one of influenza B viruses (8.3%) was isolated from the infected students. Infection preventive potency of the vaccine 2016-2017 was at 70% in our study. It was higher in the infection preventive ability than that of CDC estimation at 50%.
Influenza Vaccine 2016-2017, Vaccine Effectiveness/Ineffectiveness, Field Work Analysis 2017, University Students
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