IIS Policies: Maryland

What to know

Immunization information systems (IIS) are confidential, population-based, computerized databases that record all immunization doses administered by participating providers to persons residing within a given geopolitical area. This information details how to access immunization records for vaccine recipients who received a vaccine in Maryland.
Two people are analyzing data charts, graphs, and a dashboard on a laptop screen

General Information

Maryland’s IIS is called ImmuNet, and it includes immunization records for vaccine recipients of all ages. Visit this webpage to learn more about the IIS.

The jurisdiction is authorized by law to operate ImmuNet. For more information, please see Code of Maryland Regulations Title 10, Subtitle 06, Chapter 03.

Child Consent to Participate

For children, ImmuNet requires implicit consent with opt-out by law. Children are included in the IIS unless their parent(s)/guardian(s) choose to opt them out.

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For more information, please see Maryland Statutes § 18-109(d)(2).

Adult Consent to Participate

For adults, ImmuNet requires implicit consent with opt-out by law. Adults are included in the IIS unless they choose to opt out.

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For more information, please see Maryland Statutes § 18-109(d)(2).

Provider Reporting

Maryland does have a mandate for vaccination providers to report immunizations to ImmuNet. The reporting mandate:

  • Mandates universal reporting by law.

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For more information, please see Maryland Statutes § 18-109(d)(6).

Data Sharing

Maryland does have a policy that regulates sharing data from ImmuNet with other public health entities. The data sharing policy:

  • Requires a data use/sharing agreement or memorandum of understanding and
  • Requires protecting the data’s confidentiality.

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For more information, please see Maryland Statutes § 18-109(j).
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Content Source:
National Center for Immunization and Respiratory Diseases; Immunization Services Division