# Tracking the drop in U.S. childhood vaccinations: Our methodology

> **Open Intelligence Dossier** · First detected: 2026-11-11 03:40 UTC · Category: Health

## Executive Summary
Local reporting across Washington, Oregon, North Carolina, and the Washington, D.C. area documents a widening vaccine divide as measles cases reach levels not seen in three decades.

## Intelligence Brief
Coverage from KGW, NBC4 Washington, WRAL, and Yahoo reports on a growing geographic split in childhood measles vaccination rates across the United States, occurring alongside a nationwide measles surge. KGW reports that Southwest Washington data shows a vaccine divide amid the nationwide measles surge, without specifying exact county-level rates in the coverage provided. NBC4 Washington examines where measles vaccinations stand in the DC area amid what it describes as a growing U.S. divide, focusing on local coverage levels in the nation's capital region. WRAL reports that central North Carolina counties fall below recommended measles vaccination rates, identifying specific local jurisdictions that are under the public health threshold. Yahoo reports that data shows a growing vaccine divide as measles cases hit a 30-year high in Oregon, connecting the state-level case count to broader national patterns. The coverage emphasizes that this is not a uniform national trend but a patchwork in which some communities remain near recommended coverage while others fall short, creating pockets of vulnerability. Recommended measles vaccination rates serve as the benchmark throughout the reporting, though the coverage does not state the precise percentage threshold used by public health authorities. The 30-year high in Oregon measles cases provides a concrete measure of the surge's severity, while the simultaneous reporting from four distinct regions suggests the divide is a national phenomenon with local variations. Readers should watch whether local health departments in Southwest Washington, central North Carolina, the DC area, and Oregon issue updated guidance or intervention campaigns, and whether additional states report similar county-level gaps as measles surveillance continues.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| KGW | Southwest Washington data shows vaccine divide amid nationwide measles surge | [Source Link](https://news.google.com/rss/articles/CBMi8wFBVV95cUxOYUotd2JmRUEtc0tSdmdyczd1M2E5RHlNRlg0U0cxSUhpajVwU25vcWg5ZUdVNkJ2dmhYMmNtR01QdE1hR25yVFNlUTd3UFBRTjAyOWFiUFNRaGtTY0hxM1ZDTF9rYkVLSmRmLXlKUHZaOU5zWHUxamlEUEc1U0RmMWx4a1hPazdHeFVZakZfMkgwZ2UxbjNEVnF6WjFYc0FfX2lVQ2FpVkNrOGRmc01ZZF95UUVlZE5sM1pLWUhKd0hDOG1QZFl6SExIQmNkbnZjaFpHZExycTRsQ3NvUy1CYlUtbVc5X1JReHhLeGZFS1NSU2c?oc=5) |
| NBC4 Washington | Where measles vaccinations stand in the DC area amid growing U.S. divide | [Source Link](https://news.google.com/rss/articles/CBMivwFBVV95cUxNQi1GRER2aG1ERTRZYktYaWN0dzkxTjFWRzVfQUxhZXprVWx0R3lmU1BOakJfNFVldjhkZU91WWNhUmp4SGtWU0NNTWZMeGJOZVFWZHBBTHlhX2tKWW95cUdHakVud2RZUnBxNEFXaXh0b196TjhHY0lnRTdZQUJGRkpsMTlBZko4bElCZVIwc3pCLUZEZ1ZjMThHRmdWSDd6d204aDY5S21zMmFEcjZzczZNbE5sX04tUUFqMEEyQdIBxwFBVV95cUxNYXluMzZvaHAtS0R6eGkxUXUtZ3gwbDhkdm1xbjZLaTBvemt2ZGctSS01aFJuWkZ5ZmdwTWo3SmNJNUVFVWxHckYtMzkyLXp3NFNkRUs3bllCLUVDbW1SMTBZb1RkNmJ6R3FZbzdKRU9lUHN1NEViTno1ZnUwV1RXYVZ1N2FFRWZlRXN4c3dJajJrNEh) |
| WRAL | The vaccine divide: central NC counties fall below recommended measles vaccination rates | [Source Link](https://news.google.com/rss/articles/CBMizAFBVV95cUxONHpmNjRQN2VjeGQyZ05oR3RKU2lYYWZ1a01mN1hkSmRYZm5IS3BtUERjYVB5dUhrSjhkdTBCZkFTVmltd1Ezd0w4OFowRzE5a3lDWFZrbFV2c1doVUE3cndNWlVvVWE0X1NmQ1M1SExNYVdvWDN3Mk4xWk11SDVWVGJ5anhhYUQzOXl2NEhsTXRyLU1UWmhDZkNLTnRiWDIzOHBjVHo0M3lHd1lhMzcxekRYVGNBeXV2YWtnMlppTWZVcEU1ZHhpZlRGV2g?oc=5) |
| Yahoo | Data shows growing 'vaccine divide' as measles cases hit 30-year high in Oregon | [Source Link](https://news.google.com/rss/articles/CBMikAFBVV95cUxQbjJfclVKVU0xOG9TQkI2cUpxdGdoRkd3aFREaU9QTWRTdWJMSU9iWDhWS1JveUttVUxoaHR4SHh0Wm1YalpsSUNQaUlNOTY5OWY0TllidUZnVnNkUHkxTXNVUnBoLUI3VmpocXJiQzBNaXB0ajc2SWNwRDFSYXlDMlpfZHFQbTJsaXV0YlV4OXI?oc=5) |

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