Americas Canada Health Infectious diseases Mexico MMR news Robert F Kennedy Jr Science Society US news World newsWorld may be ‘post-herd immunity’ to measles, top US scientist saysTheWorldsNewsMay 3, 2025 by TheWorldsNewsMay 3, 20250 As infections pummel communities in the US, Mexico and Canada, fear of ‘the most contagious human disease’ grows A leading immunologist warned of a “post-herd-immunity...