It's #WorldImmunizationWeek. Vaccines are one of humanity’s greatest achievements. In the last 50 years alone, they’ve saved nearly 154 million lives – that’s more than 3 million lives a year or six people every minute for five decades. Under the banner, ‘Immunization for All is Humanly Possible’, the IFRC joins global partners in calling on world leaders to step up and ensure that everyone, everywhere has access to vaccines, tests and treatments.