One of the most prominent anti-vaccine activists in the US, Brian Hooker, says he caught measles – but he seems not to have alerted local authorities of his illness.

The claim consists of two main components: first, that Brian Hooker, known for his anti-vaccine activism, caught measles; second, that he seemingly did not alert local health authorities about his infection. Multiple credible sources confirm that Brian Hooker publicly stated he contracted measles despite childhood vaccination, likely with only one MMR dose due to his birth year.theguardian.comtheguardian.comProminent US anti-vaxxer says he caught measles and traveled back home This aligns with known vaccine effectiveness data and Hooker's own statements.

Regarding notification to authorities, reports indicate he traveled back home while infected and did not inform local public health officials, raising concerns about potential further transmission.democraticunderground.comdemocraticunderground.comProminent US anti-vaxxer says he caught measles and traveled back home However, direct confirmation from health departments or Hooker himself about the notification status is limited in available sources. The context includes the high transmissibility of measles and public health protocols requiring reporting of such cases to prevent outbreaks.

Given Hooker's public profile and the seriousness of measles outbreaks, failure to notify authorities would be notable. While the evidence supports the core factual elements of the claim, some details about notification remain based on indirect reporting rather than official confirmation. The claim is therefore mostly true but would benefit from more direct evidence regarding the notification aspect.