keyword

mrna vaccine before covid

Monthly search volume and cost-per-click data for "mrna vaccine before covid" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=mrna+vaccine+before+covid&country=us" +--------------+------------------+ | volume | 40 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-24 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
mrna vaccine	49,500	$3.07	16/20
mrna vaccines	49,500	$3.07	14/20
mrna vaccine history	720	$0.01	20/20
mrna vaccines history	720	$0.01	19/20
how long have mrna vaccine been around	260	$0	15/20
when did mrna vaccines start	110	$0	14/20
rna vaccine history	70	$0	15/20
mrna vaccine creation	70	$13.79	14/20
rna vaccines history	70	$0	14/20
mrna vaccines first used	30	$0	15/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=mrna+vaccine+before+covid&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt