 
                        
                        
                            Thursday, May 23, 2019,
                            New Delhi
                        
                            Nearly half of the world’s population is at risk from malaria – it kills more than 4 lakh people a year, most of them in Africa, where a child dies every two minutes from the disease. But now hopes have been raised of an end to it : the first malaria vaccine is being launched in immunisation programmes in Malawi, Ghana and Kenya.