polio vaccine invention timeline

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
polio vaccine invention timeline	1.38	0.8	1228	89	32
polio	1.79	1	2246	49	5
vaccine	1.43	0.5	1319	49	7
invention	0.58	0.6	92	53	9
timeline	1.15	0.8	7549	96	8

Keyword	CPC	PCC	Volume	Score
polio vaccine invention timeline	0.42	0.9	5271	87
timeline for polio vaccine	1.63	0.5	5608	24
vaccine developed year of polio	0.44	0.1	9140	94
when was polio vaccine invented	1.09	0.6	5035	67
what year was the polio vaccine invented	0.57	1	7261	58
when polio vaccine developed	0.48	0.2	7913	79
year polio vaccine introduced	0.27	1	7079	60
when was the polio vaccine introduced	1.14	0.3	8851	20
history of polio vaccination	0.68	1	1389	95
polio vaccines 1950s timeline	1.53	0.4	8299	94
polio vaccine inventor timeline	0.36	0.3	6558	17
polio vaccine development timeline	1.55	0.9	1639	1
polio vaccine history timeline	1.26	0.8	6976	18
polio vaccine start date	1.29	0.2	9472	100
first polio vaccine date	0.94	0.5	2081	67
polio vaccine what year	0.58	1	7827	71
when was the polio vaccine	1.83	0.6	968	53
when did polio vaccine start	1.33	0.1	7386	65
when was the polio vaccine distributed	0.44	1	4775	34
how long did the polio vaccine take	1.53	0.8	7648	94
when was the polio vaccine campaign	0.71	0.7	9145	37
when was the polio vaccination available	0.36	0.1	2497	86
how long did polio vaccination take	1.45	0.7	1646	95