Keyword Analysis & Research: when was the spanish flu vaccine developed

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the spanish flu vaccine developed	1.99	0.2	9376	44	42
when	1.07	1	9485	55	4
was	0.17	0.3	4659	86	3
the	0.15	0.3	3726	42	3
spanish	1.62	0.7	6808	23	7
flu	0.86	0.9	4721	61	3
vaccine	0.93	0.2	4333	31	7
developed	0.94	0.6	8335	15	9

Keyword	CPC	PCC	Volume	Score
when was the spanish flu vaccine developed	0.01	0.9	7037	61