vaccine definition change cdc

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
vaccine definition change cdc	1.75	0.5	7334	86	29
vaccine	1.85	0.4	8123	8	7
definition	0.18	1	5532	29	10
change	0.72	0.5	1474	78	6
cdc	1.44	0.1	4200	63	3

Keyword	CPC	PCC	Volume	Score
when did cdc change vaccine definition	0.42	0.4	7476	44
cdc vaccine definition change	0.05	0.1	1901	93
change in vaccine definition	0.78	0.2	2039	28
has the definition of vaccine changed	0.68	0.7	620	26
when did the definition of vaccine change	1.62	0.3	1335	9
who changed the definition of a vaccine	0.99	0.9	9402	18
new definition of vaccine	0.91	0.5	7291	73
cdc definition of a vaccine	1.2	0.6	8202	23
cdc and the vaccine	1.13	1	2033	27
cdc definition of vaccination	1.31	0.8	7834	72
what is a vaccine cdc	0.35	0.7	4864	61
definition of immunization cdc	1.57	0.8	2101	70
cdc update on vaccines	1.35	0.5	4416	71
cdc making the vaccine decision	0.25	0.7	7427	98
explaining how vaccines work cdc	0.04	0.3	111	29
vaccine schedule changes over the years	1.07	0.5	155	15
cdc and vaccine information	0.52	0.5	7542	54
what can the new vaccine do	1.52	0.5	9225	1
how has vaccines changed over time	0.08	0.2	391	82
how have vaccines changed over the years	0.71	0.6	1391	25
when was the definition of vaccine changed	0.66	0.9	7155	46
did the cdc approve the vaccine	0.74	0.6	6146	46
when did cdc change its name	1.65	0.9	992	21
history of vaccines cdc	1.97	1	4763	25
when did the vaccination come out	1.35	1	6004	41
when did vaccine become available in us	1.95	0.7	9697	82
when did vaccine start	1.8	0.5	1587	98
cdc history of vaccinations	0.84	0.9	4028	50
cdc current dates of vaccine information	0.51	0.2	6788	5
history of cdc vaccine schedules for children	0.17	0.7	7096	8
what years was the vaccine introduced	1.42	0.3	9307	21