According to WHO, which virus is spreading nowadays in North America?

Explanation

– The World Health Organization highlighted the spread of measles across parts of North America in 2025.
– Measles outbreaks have resurged in various countries partly linked to declining vaccination rates in some communities.
– Measles is a highly contagious viral disease that can be effectively prevented through vaccination.
– Public health authorities have emphasized renewed vaccination campaigns to address the resurgence of this preventable disease.