About the Authors
Centers for Disease Control and Prevention, Division of Vector-Borne Diseases, Dengue Branch, San Juan, Puerto Rico, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: GAS EV JLMJ. Performed the experiments: GAS EV YQ JC JV JFM FM. Analyzed the data: GAS EV FM CC. Contributed reagents/materials/analysis tools: CC HM. Wrote the paper: GAS HM JLMJ.