About the Authors

Edna R. Caceda

Affiliation American Embassy, Naval Medical Research Center Detachment, Lima, Peru

Tadeusz J. Kochel

To whom correspondence should be addressed. E-mail: Tad.Kochel@med.navy.mil

Affiliation American Embassy, Naval Medical Research Center Detachment, Lima, Peru

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TK EC. Performed the experiments: EC. Analyzed the data: TK EC. Wrote the paper: TK EC.