Explanation:

• The Union Health Minister Dr Harsh Vardhan launched India’s first indigenously developed vaccine against pneumonia.
• The Pneumococcal Conjugate Vaccine (PCV) named ‘Pneumosil’ has been developed by Pune-based Serum Institute of India (SII) in collaboration with the Bill and Melinda Gates Foundation and PATH, an international, nonprofit global health organization based in Seattle.
• Pneumococcal disease is the largest contributor of under-five mortality rate worldwide.