Figure 1
From: Molecular evolution of measles viruses circulated in Taiwan 1992-2008
Measles surveillance and vaccination in Taiwan, 1968-2008. Figure shows numbers of reported cases (black bars) and laboratory confirmed cases (lines) by year. The dates of introduction of measles vaccination and changes in the measles vaccination program, including campaigns, are indicated by the text and arrows. The year when measles became a reportable disease was 1985. The year when routine laboratory confirmation started was 1991, and the year when laboratory confirmation required was 2000.