Keyword Analysis & Research: when were rna vaccines developed

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when were rna vaccines developed	1.87	1	1124	41	32
when	1.84	0.8	7267	81	4
were	1.09	0.8	4738	28	4
rna	0.73	0.1	6074	100	3
vaccines	1.85	0.1	6208	81	8
developed	1.78	0.1	5324	39	9

Keyword	CPC	PCC	Volume	Score
when were rna vaccines developed	1.43	0.8	7691	27