Keyword Analysis & Research: why does active immunity last longer

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
why does active immunity last longer	0.49	0.2	6688	88	36
why	1.77	0.1	7289	29	3
does	1.27	0.2	184	95	4
active	0.93	1	6087	7	6
immunity	0.06	0.6	2127	79	8
last	0.36	0.6	3748	42	4
longer	0.92	0.9	4542	52	6

Keyword	CPC	PCC	Volume	Score
why does active immunity last longer	0.88	0.1	6759	70