Luxembourg (AFP) - European foreign ministers gather in Luxembourg Monday to try and formalise a joint EU response to combat the Ebola virus amid diplomatic warnings the crisis has reached a "tipping point". The ministers will meet hours after it was announced that a Spanish nurse who was the first person outside Africa to be infected had tested negative for the virus.Ahead of the talks, German Foreign Minister Frank-Walter Steinmeier said the bloc should consider sending "a civilian EU mission" to west Africa."This would offer a platform to (EU) member states" to send medical staff to the region, he said at a health forum in Berlin.One EU diplomat said Britain -- which already has a navy ship bound for Sierra Leone laden with medical staff and supplies -- hoped to "galvanise EU action on Ebola"."There is a real sense that this is a tipping point and we must get to grips with it now," said the diplomat.