HLN Blogs
Read our insights about what is going on in Health IT

Towards a National COVID-19 Vaccine Credential Strategy in the US
Over the past several months, we have described how the vaccine credential effort in the US differs from the situation in other countries. In this blog we review the “facts on the ground” as we see them and offer a way forward for the US.
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Vaccine Credentials Do Not Replace Full Vaccination Histories
As part of their core function, Immunization Information Systems (IIS) already provide complete and comprehensive immunization records for the individuals whose records they hold either directly or through a clinical provider. In this article we will address the similarities and differences between vaccine credentials and traditional immunization histories and offer some opportunities for public health to maintain its role in data access.
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Vaccine Credential Activities: Redirecting the Conversation for Public Health Registries
How should public health agencies understand and manage the flurry of controversy – and the loud cautions – surrounding digital vaccine credentials? This blog post is part of a series of posts we have written over the past few weeks.
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Vaccine Credentialing Activities: It’s All About the Rules!
As Smart Vaccination Certificate (SVC) plans continue to develop, it all boils down to the rules that will be developed to make the SVC’s usable. Many of these rules currently don’t exist so we analyze some key factors in this blog.
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Vaccine Credentialing Activities: WHO Interim Guidance
The World Health Organization (WHO) recently issued its Interim guidance for developing a Smart Vaccination Certificate (SVC). Here are our comments on WHO’s technical approach and recommendations for member nations to adopt and implement.
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Vaccine Credentialing Activities: A Complicated Path Forward in the US (Part 3) Recommendations
A key factor of reopening in the United States and some other countries may be a requirement for individuals to prove that they have been vaccinated against COVID-19. “Proof” may be embodied in a paper – or electronic – certificate whose source and contents can be independently verified to ensure validity. Part 3 discusses our recommendations for the US.
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