Table 4. Characteristics of influenza patients after vaccination.

Patients	Age at 1st vaccination, mon	Sex	Immunization drug	Primed status	Infected straina	Time of last dose vaccination	Time of infection	Duration from last vaccination to infection, day
1	8	F	QIV	Unprimed	A	Dec	Dec	3
2	17	M	QIV	Unprimed	A	Nov	Dec	23
3	24	M	TIV	Primed	A	Nov	Jan	49
4	22	F	TIV	Primed	A	Nov	Dec	39
5	30	M	TIV	Primed	A	Nov	Jan	71
6	12	M	QIV	Unprimed	A	Nov	Jan	42
7	30	M	QIV	Primed	A	Nov	Jan	69
8	20	F	TIV	Primed	A	Nov	Jan	56
9	28	F	TIV	Primed	A	Nov	Dec	52
10	18	F	QIV	Unprimed	A	Dec	Jan	30
11	17	M	TIV	Primed	A	Nov	Dec	46
12	28	F	QIV	Primed	A	Nov	Jan	47
13	15	M	QIV	Unprimed	B	Dec	Mar	90

F = female, QIV = quadrivalent influenza vaccine, M = male, TIV = trivalent influenza vaccine.

^aAll the infected A strains were H3N2.