A started to grow after he missed National Anniversary celebrations last month. Here in berlin hundreds of people have defied a ban on public gatherings to celebrate may day traditionally a day of leftwing protest in the german capital campaigners protested against conditions in greeces overcrowded refugee camps. South africans have been venturing outside after the government loosened restrictions in one of the worlds strictest coronavirus lockdowns some Outdoor Activities are now allowed selling alcohol and tobacco remains banned this is d. W. News a from berlin you can follow us on twitter at news or visit our website w dot com. We need to develop a vaccine. We need to produce it. And to deploy it in every single corner of the world. Its a race against time theres little chance of beating the corona virus without a vaccine but when will it be ready and. Scientists across the world are working around the clock to develop one from china to the United States germany and britain new technologies are helping speed things up more than 100 potential vaccines are in development some are already at an advanced stage and are being tested on volunteers. The pace may be unprecedented but theres still a long way to go in the battle against the outbreak