What is a rare disease?

A rare disease is defined as a condition or disorder that affects fewer than 200,000 individuals in the United States. There are approximately 7,000 rare diseases and 25–30 million Americans are affected by these rare disorders. While individuals with certain disorders may be rare, the total number of people with a rare diseases is large.

Information and resources are limited for these individuals and their families creating a myriad of challenges. Obstacles include delayed diagnosis, misdiagnosis, lack of treatment options, high medical care costs, and limited access to medical specialists.

The Nevada Rare Disease Advisory Council has been established to provide an in-depth understanding for government officials and policymakers. The goal is to address barriers preventing individuals living with rare diseases from obtaining proper treatment, resources, and care for their condition.

What role does the NV-RDAC play in supporting Nevada families?

In the United States, rare diseases collectively affect millions of people. While individual rare diseases may have a low prevalence, collectively they impact a significant portion of the population. Here are some general statistics regarding rare diseases in the US:

In Nevada, specific statistics for the prevalence of rare diseases are not readily available. This is often the case for rare diseases at the state level, as data collection and reporting on rare diseases can be challenging due to their rarity and the fragmented nature of healthcare systems. 

The Nevada Rare Disease Advisory Council’s (NV-RDAC) has initiated efforts to gather data on rare diseases in the state. This is a significant step towards addressing the needs of individuals and families grappling with these conditions. With the lack of statewide systematic data collection methods, the NV-RDAC’s efforts are pivotal in achieving a comprehensive understanding of rare disease incidence, causes, and economic impact in Nevada.

The “While You Wait” Needs Assessment campaign launched by the Nevada Rare Disease Advisory Council (NV-RDAC) in February 2024 aims to address the current limitation of relying solely on data from Cure 4 The Kids Foundation by diversifying data sources. This initiative is designed to collect a more comprehensive and representative dataset on rare diseases in Nevada. Here’s how the “While You Wait” Needs Assessment can help:

  • Broadening Data Sources: By engaging with individuals and families affected by rare diseases through the “While You Wait” campaign, the NV-RDAC can access a wider range of perspectives and experiences. This helps ensure that the data collected reflects the diversity of rare diseases and their impact within the state.
  • Identifying Unmet Needs: The needs assessment component of the campaign allows the NV-RDAC to gather information not only on the prevalence of rare diseases but also on the specific challenges and gaps in services faced by individuals and families. This information is invaluable for informing targeted interventions and resource allocation.
  • Increasing Awareness: The campaign itself can help raise awareness about rare diseases in Nevada, encouraging more individuals to come forward and share their experiences. This can contribute to reducing the stigma and isolation often associated with rare diseases and foster a sense of community among affected individuals and families.
  • Informing Policy and Program Development: The data collected through the “While You Wait” campaign provides evidence-based insights that can inform the development of policies, programs, and services to better support individuals and families affected by rare diseases in Nevada. This ensures that resources are directed where they are most needed and can have the greatest impact.


The “While You Wait” Needs Assessment campaign stands as a crucial element in the NV-RDAC’s endeavor to enhance data collection on rare diseases in Nevada and to gain deeper insights into the needs of affected individuals. Below is the data that NV-RDAC has access to for Nevada.