LONDON (AP) — More than 14 million children did not receive a single vaccine last year — about the same number as the year before — according to U. N. health officials. Nine countries accounted for more than half of those unprotected children. In their annual estimate of global vaccine coverage, released Tuesday, the World Health Organization and UNICEF said about 89% of children under one year old got a first dose of the diphtheria, tetanus and whooping cough vaccine in 2024, the same U...