Novel Chikungunya Virus Variant in Travelers Returning from Indian Ocean Islands
Figure 4. Estimated global distribution of Aedes albopictus (areas enclosed in dotted lines) and distribution of chikungunya virus (stars) from western Africa to southeastern Asia, including the Indian Ocean variant responsible for the 2006 outbreak. The color of the stars reflects the main evolutionary lineages shown in Figure 3. Ae. albopictus photograph courtesy of James Gathany, Centers for Disease Control and Prevention.