Sabin.org - SEO Checker

Overview of the SEO Check
Meta information
84% 
Page quality
80% 
Page structure
58% 
Link structure
46% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.08 s
File size
140.50 kB
Words
965
Media files
61
Number of links
119 internal / 19 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Sabin Vaccine Institute | Extending Vaccine Accessibility & Innovation
The page title should be shorter than 580 pixels. It is 620 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Home: Sabin: Making Vaccines Accessible, Driving Innovation, Expanding Global Immunization Efforts Learn more.
The length of the meta description is perfect. (709 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.sabin.org/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1.0
robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
descriptionHome: Sabin: Making Vaccines Accessible, Driving Innovation, Expanding Global Immunization Efforts Learn more.
theme-color#196bac
facebook-domain-verificationvgvknsttlo834b9nzavk3qgvw1mupa
article:publisherhttps://www.facebook.com/sabinvaccine
article:modified_time2024-10-31T15:30:56+00:00
langen-us
twitter:cardsummary_large_image
twitter:site@sabinvaccine
og:localeen_US
og:typewebsite
og:titleSabin Vaccine Institute | Extending Vaccine Accessibility & Innovation
og:descriptionHome: Sabin: Making Vaccines Accessible, Driving Innovation, Expanding Global Immunization Efforts Learn more.
og:urlhttps://www.sabin.org/
og:site_nameSabin Vaccine Institute
og:imagehttps://www.sabin.org/app/uploads/2022/06/sabin-og-image-option2.jpg
og:image:width1200
og:image:height630
og:image:typeimage/jpeg
X-UA-CompatibleIE=edge
charsetUTF-8

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Page quality

Content
(Critically important)
Some words from the page title are not used within the pages content
This page contains 965 words. That's ok.
29.1% of the text are stop words.
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
12 paragraphs were found on this page.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 18.29 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1.0" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 19 tags for this page.
Image SEO
(Somewhat important)
15 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
...alks-to-two-men-aspect-ratio-600-600.jpghealth-worker-PPE-talks-to-two-men
...njection-site-aspect-ratio-600-600-1.jpghealth-worker-preparing-injection-site
...orting-vaccines-aspect-ratio-600-600.jpghealth-workers-transporting-vaccines
...of-woman-in-lab-aspect-ratio-600-600.jpgNo alt attribute provided
...l-polio-vaccine-aspect-ratio-600-600.jpgBOOST-Mother-holding-child-receiving-oral-polio-vaccine
...022/05/DSCF1151-aspect-ratio-600-600.jpgChildren washing their hands
...Stock-499226737-aspect-ratio-600-600.jpgTwo Indian women smiling at the camera with colorful dresses
...specting-family-aspect-ratio-600-600.jpgdoctor-inspecting-family
...ials-Production-aspect-ratio-600-600.jpgINFLUENZER-Vaccine-Vials-Production
...hild-in-village-aspect-ratio-600-600.jpgMother-holding-child-in-village
...rn230615bkk-311-aspect-ratio-600-600.jpgTwo people reviewing a poster at the VARN2023 conference
...Untitled-1-01-aspect-ratio-600-600-1.jpgNo alt attribute provided
...x3133-98ce001-aspect-ratio-600-600-1.jpgNo alt attribute provided
...ling-pipettes-aspect-ratio-600-600-1.jpgfilling-pipettes
...Crowd-of-people-aspect-ratio-600-600.jpgCrowd-of-people
...r_Sabin_highres-aspect-ratio-600-600.jpgDr. Albert B. Sabin in his laboratory.
..._SabineVI6164-aspect-ratio-600-600-1.jpgthe Albert B Sabin Gold Medal
...ghing-in-office-aspect-ratio-600-600.jpgwoman-laughing-in-office
...hemes/sabin/assets/images/sabin-logo.svgSabin Vaccine Institute
...alks-to-two-men-aspect-ratio-600-600.jpghealth-worker-PPE-talks-to-two-men
...njection-site-aspect-ratio-600-600-1.jpghealth-worker-preparing-injection-site
...orting-vaccines-aspect-ratio-600-600.jpghealth-workers-transporting-vaccines
...of-woman-in-lab-aspect-ratio-600-600.jpgNo alt attribute provided
...l-polio-vaccine-aspect-ratio-600-600.jpgBOOST-Mother-holding-child-receiving-oral-polio-vaccine
...022/05/DSCF1151-aspect-ratio-600-600.jpgChildren washing their hands
...Stock-499226737-aspect-ratio-600-600.jpgTwo Indian women smiling at the camera with colorful dresses
...specting-family-aspect-ratio-600-600.jpgdoctor-inspecting-family
...ials-Production-aspect-ratio-600-600.jpgINFLUENZER-Vaccine-Vials-Production
...hild-in-village-aspect-ratio-600-600.jpgMother-holding-child-in-village
...rn230615bkk-311-aspect-ratio-600-600.jpgTwo people reviewing a poster at the VARN2023 conference
...Untitled-1-01-aspect-ratio-600-600-1.jpgNo alt attribute provided
...x3133-98ce001-aspect-ratio-600-600-1.jpgNo alt attribute provided
...ling-pipettes-aspect-ratio-600-600-1.jpgfilling-pipettes
...Crowd-of-people-aspect-ratio-600-600.jpgCrowd-of-people
...r_Sabin_highres-aspect-ratio-600-600.jpgDr. Albert B. Sabin in his laboratory.
..._SabineVI6164-aspect-ratio-600-600-1.jpgthe Albert B Sabin Gold Medal
...ghing-in-office-aspect-ratio-600-600.jpgwoman-laughing-in-office
...Shipment3-2-1-aspect-ratio-610-570-1.jpgNurse is getting ready to vaccinate someone.
...d-Congress-2023-aspect-ratio-610-665.jpgAttendees at FIGO World Congress 2023
...AR_2023_Mockup2-aspect-ratio-610-665.jpgNo alt attribute provided
...sabin/assets/images/svg/safe-vaccine.svgSafe-Vaccine
...s/sabin/assets/images/svg/affordable.svgAffordable
...es/sabin/assets/images/svg/effective.svgEffective
...assets/images/svg/untapped-potential.svgUntapped-Potential
...emes/sabin/assets/images/orange-oval.svgNo alt attribute provided
.../04/Picture-114-aspect-ratio-500-500.jpgNo alt attribute provided
...PEV-NIV-CENTRAL-aspect-ratio-990-715.jpgNo alt attribute provided
...k_Shipment3-2-1-aspect-ratio-990-715.jpgNurse is getting ready to vaccinate someone.
...d-Congress-2023-aspect-ratio-990-715.jpgAttendees at FIGO World Congress 2023
...0326_110033_552-aspect-ratio-990-715.jpgNo alt attribute provided
...ge-990-x-715-px-aspect-ratio-990-715.jpgImage of delivery of vaccines and a patient getting a shot.
...00x1333-282f2dd-aspect-ratio-990-715.jpgMother holding her child
...tock-904833344-aspect-ratio-1920-790.jpgNo alt attribute provided
...sabin/assets/images/sabin-logo-white.svgSabin Vaccine Institute
/app/uploads/2024/03/updatedboost-01.svgNo alt attribute provided
...ds/2022/04/coalition-against-typhoid.svgNo alt attribute provided
...05/Sabin-VAD-Logo-Grey-footer-60px_v.svgVaccine Acceptance and Demand Logo
/app/uploads/2024/03/ghc.svgNo alt attribute provided
Video URLWidthHeight
...uploads/2022/05/Sabin-Website-B-roll.mp41280720
...youtube.com/embed/O6TykksVyzY?rel=0

Page structure

H1 heading
(Critically important)
From Vaccines to Vaccinations
The H1 heading is perfect.
Headings
(Important)
Some headings occur twice on the page.
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 From Vaccines to Vaccinations
H2 Confronting Deadly Diseases
H2 Making a Case for Vaccines
H2 News & Resources
H2 Sign up for our newsletter
H3 Sabin Sends More Marburg Vaccines for Rwanda’s Outbreak
H3 A Powerful Partnership Comes Together to Accelerate Cervical Cancer Elimination
H3 See our 2023 Impact Report
H3 Creating New Opportunities for HPV Vaccination in Cameroon
H3 Sabin Sends More Marburg Vaccines for Rwanda’s Outbreak Duplicate text
H3 A Powerful Partnership Comes Together to Accelerate Cervical Cancer Elimination Duplicate text
H3 Nurse-Midwife On a Mission to Prevent Preventable Diseases
H3 Sabin Dispatches Additional Vaccines to Rwanda for Marburg Outbreak
H3 Increasing Childhood Vaccination Rates: The Success of Mobile Clinics in Nigeria
H5 Our Impact
H5 Communities
H5 Our Partners
H5 About Us
H5 Our Impact Duplicate text
H5 Communities Duplicate text
H5 Our Partners Duplicate text
H5 About Us Duplicate text
H6 Search
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
1 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 19 external links on this page.
LinkAttributesAnchor text
https://www.sabin.org/Anchor Skip to main content
https://www.sabin.org/our-impact/Subdomain Learn more about our Impact Learn more about our Impact
/our-impact/generating-evidence/Subdomain Generating Evidence
IMG-ALT health-worker-PPE-talks-to-two-men
/our-impact/exploring-vaccine-...Subdomain Exploring Vaccine Acceptance
IMG-ALT health-worker-preparing-injection-site
/our-impact/strengthening-immu...Subdomain Strengthening Immunization Capacity
IMG-ALT health-workers-transporting-vaccines
/our-impact/powering-vaccine-rd/Subdomain Powering Vaccine R&D
https://www.sabin.org/programs/Subdomain Programs
/disease-focus-areas/Subdomain Disease Focus Areas Disease Focus Areas
https://www.sabin.org/covid-19/Subdomain COVID-19
https://www.sabin.org/ebola/Subdomain Ebola Sudan
/the-global-hpv-consortium/Subdomain HPV
https://www.sabin.org/influenza/Subdomain Influenza
https://www.sabin.org/marburg/Subdomain Marburg
https://www.sabin.org/typhoid/Subdomain Typhoid
/communities/Subdomain Learn more about our communities Learn more about our communities
/communities/boost-community/Subdomain Boost Community
IMG-ALT BOOST-Mother-holding-child-receiving-oral-polio-vaccine
/communities/coalition-against...Subdomain Coalition against Typhoid
IMG-ALT Children washing their hands
/communities/the-global-hpv-co...Subdomain The Global HPV Consortium
IMG-ALT Two Indian women smiling at the camera with colorful dresses
/communities/immunization-advo...Subdomain Immunization Advocates
IMG-ALT doctor-inspecting-family
/communities/influenza-vaccine...Subdomain The Influenzer Initiative
IMG-ALT INFLUENZER-Vaccine-Vials-Production
/communities/research-grants/Subdomain Social and Behavioral Research Grants
IMG-ALT Mother-holding-child-in-village
/communities/vaccine-acceptanc...Subdomain Vaccination Acceptance Research Network
IMG-ALT Two people reviewing a poster at the VARN2023 conference
https://www.sabin.org/partners/Subdomain Learn more about our partners Learn more about our partners
/resources/clinical-partnershi...Subdomain Clinical Partnership Framework
/communities/the-global-hpv-co...Subdomain The Global HPV Consortium Partnerships
/resources/powering-vaccine-rd...Subdomain Partnership Case Study - Lessons from COVID-19
IMG-ALT filling-pipettes
/partners/partner-with-us/Subdomain Partner With Us Partner With Us
https://www.sabin.org/about/Subdomain Learn more about Sabin Learn more about Sabin
/about/our-people/Subdomain Our People
IMG-ALT Crowd-of-people
/about/our-history/Subdomain Our History
IMG-ALT Dr. Albert B. Sabin in his laboratory.
/about/awards-recognition/Subdomain Awards & Recognition
IMG-ALT the Albert B Sabin Gold Medal
/about/diversity-equity-inclus...Subdomain Diversity, Equity & Inclusion
IMG-ALT woman-laughing-in-office
/about/annual-report/Subdomain Annual Report
/about/financials/Subdomain Financials
/about/opportunities/Subdomain Opportunities Opportunities
/about/opportunities/research-...Subdomain Research Grants
/about/opportunities/careers/Subdomain Careers
/about/opportunities/internships/Subdomain Internships
/newsletters/Subdomain Subscribe
https://www.sabin.org/resources/Subdomain Resources
/resources/?_categories=insightsInsights
https://www.sabin.org/press/Subdomain News
https://www.sabin.org/events/Subdomain Events
/about/opportunities/careers/Subdomain Text duplicate Careers
https://www.linkedin.com/compa...New window External Subdomain LinkedIn
https://www.youtube.com/sabinv...New window External Subdomain YouTube
https://twitter.com/sabinvaccineNew window External Twitter
https://www.facebook.com/sabin...New window External Subdomain Facebook
https://www.instagram.com/sabi...New window External Subdomain Instagram
https://www.sabin.org/IMG-ALT Sabin Vaccine Institute
https://www.sabin.org/our-impact/Subdomain Text duplicate Learn more about our Impact Learn more about our Impact
/our-impact/generating-evidence/Subdomain Text duplicate Generating Evidence
IMG-ALT health-worker-PPE-talks-to-two-men
/our-impact/exploring-vaccine-...Subdomain Text duplicate Exploring Vaccine Acceptance
IMG-ALT health-worker-preparing-injection-site
/our-impact/strengthening-immu...Subdomain Text duplicate Strengthening Immunization Capacity
IMG-ALT health-workers-transporting-vaccines
/our-impact/powering-vaccine-rd/Subdomain Text duplicate Powering Vaccine R&D
https://www.sabin.org/programs/Subdomain Text duplicate Programs
/disease-focus-areas/Subdomain Text duplicate Disease Focus Areas Disease Focus Areas
https://www.sabin.org/covid-19/Subdomain Text duplicate COVID-19
https://www.sabin.org/ebola/Subdomain Text duplicate Ebola Sudan
/the-global-hpv-consortium/Subdomain Text duplicate HPV
https://www.sabin.org/influenza/Subdomain Text duplicate Influenza
https://www.sabin.org/marburg/Subdomain Text duplicate Marburg
https://www.sabin.org/typhoid/Subdomain Text duplicate Typhoid
/communities/Subdomain Text duplicate Learn more about our communities Learn more about our communities
/communities/boost-community/Subdomain Text duplicate Boost Community
IMG-ALT BOOST-Mother-holding-child-receiving-oral-polio-vaccine
/communities/coalition-against...Subdomain Text duplicate Coalition against Typhoid
IMG-ALT Children washing their hands
/communities/the-global-hpv-co...Subdomain Text duplicate The Global HPV Consortium
IMG-ALT Two Indian women smiling at the camera with colorful dresses
/communities/immunization-advo...Subdomain Text duplicate Immunization Advocates
IMG-ALT doctor-inspecting-family
/communities/influenza-vaccine...Subdomain Text duplicate The Influenzer Initiative
IMG-ALT INFLUENZER-Vaccine-Vials-Production
/communities/research-grants/Subdomain Text duplicate Social and Behavioral Research Grants
IMG-ALT Mother-holding-child-in-village
/communities/vaccine-acceptanc...Subdomain Text duplicate Vaccination Acceptance Research Network
IMG-ALT Two people reviewing a poster at the VARN2023 conference
https://www.sabin.org/partners/Subdomain Text duplicate Learn more about our partners Learn more about our partners
/resources/clinical-partnershi...Subdomain Text duplicate Clinical Partnership Framework
/communities/the-global-hpv-co...Subdomain Text duplicate The Global HPV Consortium Partnerships
/resources/powering-vaccine-rd...Subdomain Text duplicate Partnership Case Study - Lessons from COVID-19
IMG-ALT filling-pipettes
/partners/partner-with-us/Subdomain Text duplicate Partner With Us Partner With Us
https://www.sabin.org/about/Subdomain Text duplicate Learn more about Sabin Learn more about Sabin
/about/our-people/Subdomain Text duplicate Our People
IMG-ALT Crowd-of-people
/about/our-history/Subdomain Text duplicate Our History
IMG-ALT Dr. Albert B. Sabin in his laboratory.
/about/awards-recognition/Subdomain Text duplicate Awards & Recognition
IMG-ALT the Albert B Sabin Gold Medal
/about/diversity-equity-inclus...Subdomain Text duplicate Diversity, Equity & Inclusion
IMG-ALT woman-laughing-in-office
/about/annual-report/Subdomain Text duplicate Annual Report
/about/financials/Subdomain Text duplicate Financials
/about/opportunities/Subdomain Text duplicate Opportunities Opportunities
/about/opportunities/research-...Subdomain Text duplicate Research Grants
/about/opportunities/careers/Subdomain Text duplicate Careers
/about/opportunities/internships/Subdomain Text duplicate Internships
/newsletters/Subdomain Text duplicate Subscribe
https://www.sabin.org/resources/Subdomain Text duplicate Resources
/resources/?_categories=insightsText duplicate Insights
https://www.sabin.org/press/Subdomain Text duplicate News
https://www.sabin.org/events/Subdomain Text duplicate Events
/about/opportunities/careers/Subdomain Text duplicate Careers
https://www.linkedin.com/compa...New window External Subdomain Text duplicate LinkedIn
https://www.youtube.com/sabinv...New window External Subdomain Text duplicate YouTube
https://twitter.com/sabinvaccineNew window External Text duplicate Twitter
https://www.facebook.com/sabin...New window External Subdomain Text duplicate Facebook
https://www.instagram.com/sabi...New window External Subdomain Text duplicate Instagram
https://www.sabin.org/our-impact/Subdomain More about our impact More about our impact
/resources/sabin-sends-more-ma...Subdomain Sabin Sends More Marburg Vaccines for Rwanda’s Outbreak
/resources/a-powerful-partners...Subdomain A Powerful Partnership Comes Together to Accelerate Cervical Cancer Elimination
/about/annual-report/Subdomain See our 2023 Impact Report
/resources/sabin-vaccine-insti...Subdomain Read more Read more
https://www.who.int/health-top...External Subdomain Anchor more than 3 million lives each year
/about/our-history/dr-albert-b...Subdomain More about Dr. Sabin's legacy More about Dr. Sabin's legacy
https://www.sabin.org/resources/Subdomain Explore all resources Explore all resources
/resources/creating-new-opport...Creating New Opportunities for HPV Vaccination in Cameroon
/resources/sabin-sends-more-ma...Text duplicate Sabin Sends More Marburg Vaccines for Rwanda’s Outbreak
/resources/a-powerful-partners...Text duplicate A Powerful Partnership Comes Together to Accelerate Cervical Cancer Elimination
/resources/nurse-midwife-on-a-...Nurse-Midwife On a Mission to Prevent Preventable Diseases
/resources/sabin-dispatches-ad...Sabin Dispatches Additional Vaccines to Rwanda for Marburg Outbreak
/resources/increasing-childhoo...Increasing Childhood Vaccination Rates: The Success of Mobile Clinics in Nigeria
/newsletters/Subdomain Subscribe Subscribe
https://www.sabin.org/our-impact/Subdomain Our Impact Our Impact
https://www.sabin.org/Text duplicate IMG-ALT Sabin Vaccine Institute
https://www.sabin.org/our-impact/Subdomain Our Impact
/communities/Subdomain Communities
https://www.sabin.org/partners/Subdomain Partners
https://www.sabin.org/about/Subdomain About
https://www.sabin.org/resources/Subdomain Text duplicate Resources
/resources/?_categories=insightsText duplicate Insights
https://www.sabin.org/press/Subdomain Text duplicate News
https://www.sabin.org/events/Subdomain Text duplicate Events
/about/opportunities/careers/Subdomain Text duplicate Careers
https://www.linkedin.com/compa...New window External Subdomain Text duplicate LinkedIn
https://www.youtube.com/sabinv...New window External Subdomain Text duplicate YouTube
https://twitter.com/sabinvaccineNew window External Text duplicate Twitter
https://www.facebook.com/sabin...New window External Subdomain Text duplicate Facebook
https://www.instagram.com/sabi...New window External Subdomain Text duplicate Instagram
https://www.sabin.org/contact-us/Subdomain Contact Us
/privacy-policy/Subdomain Privacy Policy
/newsletters/Subdomain Text duplicate Subscribe
https://boostcommunity.org/External No Text
https://www.coalitionagainstty...External Subdomain No Text
https://www.vaccineacceptance....External Subdomain IMG-ALT Vaccine Acceptance and Demand Logo
/communities/the-global-hpv-co...Subdomain No Text
/communities/getting-to-zero/Subdomain View past newsletters.
/privacy-policy/Subdomain privacy policy

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.sabin.org/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.08 seconds.
The file size of the HTML document is fine (141 kB).

HTTP Response Header

NameValue
cache-controlmax-age=0
content-typetext/html; charset=UTF-8
link<https://www.sabin.org/wp-json/>; rel="https://api.w.org/"
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x-frame-optionsSAMEORIGIN
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x-cacheHIT, HIT
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External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 1,315 referring domains.
This page has 69,107 backlinks.
This page has backlinks from 866 different ip addresses.

Robots.txt

User-agent: *
Disallow: /wp/wp-admin/
Allow: /wp/wp-admin/admin-ajax.php

User-agent: *
Crawl-delay: 10

User-agent: Twitterbot
Disallow:

User-agent: yaanibot
Disallow: /

Search preview

www.sabin.org
Sabin Vaccine Institute | Extending Vaccine Accessibility & Inn...
Home: Sabin: Making Vaccines Accessible, Driving Innovation, Expanding Global Immunization Efforts Learn more.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Sabin81%Check
Vaccine81%Check
Sabin Vaccine81%Check
Sabin Vaccine Institute72%Check
vaccines70%Check
Vaccine Acceptance60%Check
vaccines accessible59%Check
innovation56%Check
access56%Check
making vaccines accessible56%Check

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