thing about complacency is that the number of susceptible people who resist or reject facts and information will accumulate, and the disease will come back, as you're seeing in the United States with measles and whooping cough, which are terrible diseases," said WHO immunisation expert Tracey Goodman
bout complacency is that the number of susceptible people who resist or reject facts and information will accumulate, and the disease will come back, as youre seeing in the United States with measles and whooping cough, which are terrible diseases, said WHO immunisation expert Tracey Goodman.