Outbreaks of measles virus in the UK and U.S. are not related to hypothetical “Disease X” - a placeholder term for an unknown future pandemic-causing pathogen - as suggested by misleading social media posts. While measles is highly contagious among people who are not vaccinated - such as groups linked to recent outbreaks – it is also highly preventable with the existing vaccine and therefore has little pandemic potential‚ experts told Reuters. The UK Health Security Agency (UKHSA)...