On four separate occasions, Robert F. Kennedy Jr., the Health and Human Services secretary, has suggested that the measles outbreak in Texas, which is now over 500 cases, is beginning to subside and grow more slowly. But a review of state data indicates there’s no decline yet in the pace of cases. During a visit to West Texas to attend the funeral of an unvaccinated 8-year-old who died of measles, Kennedy said in an April 6 post on X that since the deployment of a Centers for...