ຢາວັກຊີນປ້ອງກັນມາລາເຣຍທີ່ໄດ້ຮັບການອະນຸມັດໃໝ່ ສາມາດຮັກສາຊີວິດໄດ້ຫຼາຍລ້ານຄົນ

The World Health Organization approved a second malaria vaccine Monday. It’s hoped the new drug will quickly be rolled out in countries across Africa in the coming months. Henry Ridgwell reports from London.