Keyword Analysis & Research: when were mrna vaccines first invented

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when were mrna vaccines first invented	1.33	0.6	1779	60	38
when	0.11	0.4	3564	26	4
were	1.35	0.5	8619	68	4
mrna	1.71	0.3	5295	59	4
vaccines	0.93	0.1	8445	82	8
first	0.53	0.9	7546	36	5
invented	0.92	0.9	4960	29	8

Keyword	CPC	PCC	Volume	Score
when were mrna vaccines first invented	1.19	1	8453	38