Keyword Analysis & Research: when was the first covid 19 vaccine developed

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the first covid 19 vaccine developed	0.47	0.1	4103	26	45
when	1.52	0.5	7934	5	4
was	1.04	0.7	4918	84	3
the	1.98	0.6	2274	19	3
first	0.79	0.3	2408	95	5
covid	0.38	0.9	682	2	5
19	0.73	0.9	186	83	2
vaccine	0.45	0.4	2537	21	7
developed	1.99	0.3	3636	39	9

Keyword	CPC	PCC	Volume	Score
when was the first covid 19 vaccine developed	1.11	0.8	5829	17
who developed the first covid 19 vaccine	1.38	0.6	804	10