Every year an estimated 1.2 million children under the age of five are killed by pneumonia. It accounts for 18 per cent of all such deaths and is believed to be the single largest killer of infants. The second most common cause of bacterial pneumonia is haemophilus influenzae type b (Hib) , which can be prevented with the five in one pentavalent vaccine. In June 2011, the GAVI Alliance at its pledging conference was able to achieve commitments from vaccine manufacturers to lower prices for the pentavalent vaccine. A press release by GAVI today announced that the cost of the pentavalent vaccine has been reduced further. To read more please click here.