The Final Inch

अपनी भाषा में प्लॉट जोड़ेंFifty years after the development of the polio vaccine in the United States, the potentially crippling polio virus still finds refuge in some of the world's most vulnerable places, poised to... सभी पढ़ेंFifty years after the development of the polio vaccine in the United States, the potentially crippling polio virus still finds refuge in some of the world's most vulnerable places, poised to re-emerge and re-infect regions where it was stamped out decades ago. The first line of d... सभी पढ़ेंFifty years after the development of the polio vaccine in the United States, the potentially crippling polio virus still finds refuge in some of the world's most vulnerable places, poised to re-emerge and re-infect regions where it was stamped out decades ago. The first line of defense against such a nightmarish occurrence is a vast army of health workers who go door-... सभी पढ़ें