Which North Texas cities were named among anti-vaccine 'hotspots' in national study?

Collin and Tarrant counties were singled out in a national survey as anti-vaccination "hotspots" for non-medical vaccine exemptions among

Anti-vaccine hot spots on rise across U.S., study finds

Texas - Wikipedia

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The Future of National Vaccine Policy Runs Through Texas

Texas is No. 1 in “Hotspots” For Vaccine Exemptions

What You Should Know About the Coronavirus in Texas – Texas Monthly

INTERACTIVE MAP: See Your Texas School District's Vaccination Rate – Houston Public Media

Texas No. 1 'hotspot' for vaccine exemptions

What Fort Worthians Have to Say About City Becoming Anti-Vaccine Hotspot - Fort Worth Magazine

In Texas and beyond, hot spots for vaccine refusers alarm officials

Homelessness in the United States - Wikipedia