Significant concepts: influenza virus, american academy, seasonal influenza vaccine, sexually transmit, immunization action, centers for disease, immune system, recommend immunization schedule, mumps and rubella, recent study, food and drug, influenzae type b, haemophilus influenzae type, sids death, immunization practices.

Most relevant domains

Most relevant domains based on cumulative page relevance to the topic as defined by example links and on the number of relevant domains linking to them.

domain	rank	page count	visit count	link count	relevance	popularity
http://who.int/	1	321	345	2999	0.96	3.37	who.int
http://cdc.gov/	2	192	209	5707	0.99	4.33	cdc.gov
http://umn.edu/	3	380	384	3379	0.97	1.83	umn.edu
http://naturalnews.com/	4	224	253	4197	0.92	3.06	naturalnews.com
http://vaccineimpact.com/	5	263	264	662	0.99	1.96	vaccineimpact.com
http://healthimpactnews.com/	6	228	237	730	0.99	2.31	healthimpactnews.com
http://vactruth.com/	7	232	235	681	1	2.16	vactruth.com
http://whale.to/	8	218	230	2895	0.97	2.23	whale.to
http://fiercepharma.com/	9	304	314	553	0.97	1.56	fiercepharma.com
http://ageofautism.com/	10	212	240	1322	0.93	2.48	ageofautism.com

Atext

Most frequent phrases in anchor texts of links found in this topical graph .

atext	count	semantic flow ™
pubmed	1275	75.73
vaccines	860	54.14
crossref	869	53.44
español	1155	46.35
read more	807	44.16
health	850	42.46
here	694	42.25
autism	527	30.87
measles	430	27.91
view article	460	27.5

Keyword ideas

Common word stems found in on-topic page titles.

word
vaccin
health
flu
archiv
autism
immun
news
diseas
children
shot

Popular pages

On-topic pages with highest topical PageRank.

title / url
storybreak stars https://gizmodo.com/tag/vaccine	gizmodo.com
Know HPV TV Commercial, 'HPV Vaccination' - iSpot.tv https://www.ispot.tv/ad/Ap1V/know-hpv-hpv-vaccination	www.ispot.tv
September 2010: Flu season preview « The MedAlerts Blog http://www.medalerts.org/analysis/archives/243	www.medalerts.org
An antivaxer starts a WhiteHouse.gov petition for a five year moratorium on childhood vaccines. Hilarity ensues. - RESPECTFUL https://respectfulinsolence.com/2017/07/11/an-antivaxer-starts-a-whitehouse-gov-petition-f	respectfulinsolence.com
An Algorithm for Treatment of Patients With Hypersensitivity Reactions After Vaccines | Special Articles | Pediatrics http://pediatrics.aappublications.org/content/122/3/e771.full	pediatrics.aappublications.org
Immunization policy and Board of Health rules | Department of Public Health and Environment https://www.colorado.gov/pacific/cdphe/immunization-policy-and-board-health-rules	www.colorado.gov
Newcastle Disease - GALVmed https://www.galvmed.org/livestock-and-diseases/livestock-diseases/newcastle-disease/	www.galvmed.org
Pro-vaccination efforts, debunking autism myths may be scaring wary parents from shots - CBS News https://www.cbsnews.com/news/pro-vaccination-campaigns-debunking-myths-may-scaring-wary-pa	www.cbsnews.com
Petition · Urge Merck to Revive Single-Dose Measles and Mumps Vaccines · Change.org https://www.change.org/p/centers-for-disease-control-urge-merck-to-revive-single-dose-meas	www.change.org
Who & When | Vaccines.gov https://www.vaccines.gov/who_and_when/	www.vaccines.gov

Popular prospect pages

On-topic pages with highest topical PageRank having a few outgoing links and domains.

title / url	PR	relevance	links	rel links	external links	external domains	referring domains	external backlinks
storybreak stars https://gizmodo.com/tag/vaccine	0.34	1	70	24	11	6	0	0	gizmodo.com
An antivaxer starts a WhiteHouse.gov petition for a five year moratorium on childhood vaccines. Hilarity ensues. - RESPECTFUL https://respectfulinsolence.com/2017/07/11/an-antivaxer-starts-a-whitehouse-gov-petition-f	0.32	1	69	29	11	8	1	1	respectfulinsolence.com
Pro-vaccination efforts, debunking autism myths may be scaring wary parents from shots - CBS News https://www.cbsnews.com/news/pro-vaccination-campaigns-debunking-myths-may-scaring-wary-pa	0.31	1	77	14	5	4	1	1	www.cbsnews.com
Who & When | Vaccines.gov https://www.vaccines.gov/who_and_when/	0.3	1	79	52	11	7	0	0	www.vaccines.gov
Flu vaccine safety risks and information https://www.vaccineinjuryhelpcenter.com/flu-vaccine-information/	0.3	1	69	39	5	5	0	0	www.vaccineinjuryhelpcenter.com
Are The Vaccine Court's Requirements Too Strict? : Shots - Health News : NPR https://www.npr.org/sections/health-shots/2015/06/03/411244055/are-the-vaccine-courts-requ	0.3	1	217	31	6	6	1	1	www.npr.org
The Importance of Declining the Hepatitis B Vaccine On Your Birth Plan | Vaccination Information Network https://www.vaccinationinformationnetwork.com/the-importance-of-declining-the-hepatitis-b-	0.29	1	41	24	7	6	0	0	www.vaccinationinformationnetwork.com
Federal Register :: National Vaccine Injury Compensation Program: Revisions to the Vaccine Injury Table https://www.federalregister.gov/documents/2015/07/29/2015-17503/national-vaccine-injury-co	0.29	1	149	19	7	5	2	2	www.federalregister.gov
Polio: Mutated virus breaches vaccine protection u2013 ClinicalNews https://clinicalnews.org/2014/08/21/polio-mutated-virus-breaches-vaccine-protection/	0.29	1	51	16	10	10	1	1	clinicalnews.org
Another antivaccine zombie meme: polio vaccine and SV40 and cancer, oh, my! u2013 Science-Based Medicine https://sciencebasedmedicine.org/another-antivaccine-zombie-meme-sv40-and-cancer-and-polio	0.28	1	163	55	23	13	1	1	sciencebasedmedicine.org

Hubs

Pages with most links towards other likely on-topic pages.

url	count	PR	score	semantic flow ™	relevance	on topic	links	rel links	external links	external domains	referring domains	external backlinks
http://whale.to/vaccines.html	1047	0.21	1	40.07	1	yes	2352	1121	66	56	0	0	whale.to
https://www.naturalnews.com/list_features_vaccine.html	1002	0.15	0.95	32.52	1	yes	1289	1109	18	5	0	0	www.naturalnews.com
http://www.paho.org/hq/index.php?option=com_content&view=article&id=295&Itemid=3626&lang=e	698	0.15	0.94	23.06	0.97	yes	816	710	2	2	0	0	www.paho.org
http://www.paho.org/hq/index.php?option=com_content&view=article&id=730&Itemid=39426&lang=	694	0.15	0.95	27.42	0.98	yes	825	715	5	4	0	0	www.paho.org
https://www.cdc.gov/mmwr/volumes/65/rr/rr6505a1.htm?s_cid=rr6505a1_w	590	0.24	0.96	37.76	1	yes	903	625	589	8	2	2	www.cdc.gov
http://www.greenmedinfo.com/anti-therapeutic-action/vaccination-all	523	0.16	0.99	27.73	1	yes	961	524	30	1	0	0	www.greenmedinfo.com
https://en.wikipedia.org/wiki/Vaccine	358	0.15	0.99	20.7	1	yes	770	359	121	47	1	1	en.wikipedia.org
http://www.wnho.net/vaccination_news_2015.htm	356	0.15	0.97	20.33	1	yes	448	410	402	45	0	0	www.wnho.net
http://www.pandemicresponseproject.com/news.html	266	0.17	0.97	18.36	1	yes	375	350	349	99	1	1	www.pandemicresponseproject.com
https://rationalwiki.org/wiki/Vaccine_denialism	258	0.19	0.85	17.83	1	yes	485	291	146	86	1	1	rationalwiki.org

Domains with most linking domains

Relevant domains with most other relevant domains linking to them.

domain	count	semantic flow ™
http://cdc.gov/	467	264.44	cdc.gov
http://nih.gov/	439	418.78	nih.gov
http://youtube.com/	257	55.34	youtube.com
http://who.int/	251	64.95	who.int
http://wordpress.com/	201	59.82	wordpress.com
http://fda.gov/	182	36.59	fda.gov
http://facebook.com/	178	40.65	facebook.com
http://nytimes.com/	169	25.57	nytimes.com
http://aappublications.org/	163	28.26	aappublications.org
http://amazon.com/	155	33.48	amazon.com