The World Health Organization (WHO) is working to compile an updated list of priority pathogens that can cause future outbreaks or pandemics, the UN agency announced on Monday. WHO is convening over 300 scientists who will consider the evidence on over 25 virus families and bacteria, as well as “Disease X”, which indicates an unknown pathogen that could cause a serious international epidemic. The process began on Friday and will guide global investment, and research and development (R&D), especially in vaccines, tests, and treatments. Essential for quick response The priority pathogens list was first published in 2017 and includes COVID-19,