THE HAGUE, Netherlands (AFP) — The European Medicines Agency said Thursday a coronavirus variant known as “Mu” could be cause for concern, although there is no data yet to show it will overtake the dominant Delta strain. Mu, which was first identified in Colombia in January and is known scientifically as B.1.621, was classified earlier this month as a “variant of interest” by the World Health Organization. The EMA, while mainly focused on the highly […]