World Immunization Week 2019 starts tomorrow. Celebrated through the last week of April this is a week-long WHO campaign that promotes vaccination to prevent the spread of infectious ailments. Every year approximately 3 million lives are saved from fatal communicable diseases like pneumonia viral hepatitis diphtheria measles and cholera with the help of immunization. The death toll of measles reduced significantly between 2000 to 2017 and polio is about to be wiped off due to efficient immunization plans adopted by various governments worldwide. Vaccination also works as a cost-effective machinery for the governments to achieve various other health goals that