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Causes & What We Know/March 9, 2026/2 min read

Influenza A Infection May Trigger Type 1 Diabetes in Some People

A recent case report highlights the potential link between influenza A infection and the development of type 1 diabetes, particularly in individuals with underlying autoimmune conditions.

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Key takeaways

  • Influenza A infection may trigger type 1 diabetes in some people, especially those with underlying autoimmune conditions.
  • Autoimmune thyroid disease, such as Hashimoto's disease, increases the risk of developing type 1 diabetes after an influenza infection.
  • Symptoms like polydipsia, polyuria, and weight loss following an influenza infection may indicate a need for blood sugar testing.

What is Autoimmune Polyendocrine Syndrome (APS) Type 3A?

Autoimmune Polyendocrine Syndrome (APS) Type 3A is a rare condition where an individual has two or more autoimmune diseases, including Hashimoto's thyroiditis and type 1 diabetes. In this case report, the patient had APS Type 3A due to her coexisting Hashimoto's disease and acute-onset type 1 diabetes.

The Role of Influenza A Infection

Influenza A virus infection has been linked to an increased risk of developing type 1 diabetes. The case report suggests that influenza A infection may trigger the onset of type 1 diabetes, particularly in individuals with underlying autoimmune conditions.

Recognizing the Warning Signs

If you have an underlying autoimmune condition and experience symptoms like polydipsia (excessive thirst), polyuria (frequent urination), or weight loss after an influenza infection, it's essential to get your blood sugar levels checked. These symptoms may indicate a need for further medical attention.

Evidence label

Source: Cureus. Evidence type: PubMed indexed literature. Type1Cure is an information and intelligence hub, not a medical advice service. This article summarizes published research and does not provide diagnosis, treatment, or personal medical guidance. Always talk to your own care team before changing anything about your Type 1 diabetes management.

Type1Cure is an information and intelligence hub, not a medical advice service. This article summarizes published research and does not provide diagnosis, treatment, or personal medical guidance. Always talk to your own care team before changing anything about your Type 1 diabetes management.