About the Authors

Erik Hansson

erik.hansson@med.lu.se

Affiliation Occupational and Environmental Medicine, Lund University, Lund, Sweden

Mahmood Sasa

Affiliation Instituto Clodomiro Picado, Facultad de Microbiogía, Universidad de Costa Rica, San José, Costa Rica

Kristoffer Mattisson

Affiliation Occupational and Environmental Medicine, Lund University, Lund, Sweden

Arodys Robles

Affiliation Centro Centroamericano de Población, Universidad de Costa Rica, San José, Costa Rica

José María Gutiérrez

Affiliation Instituto Clodomiro Picado, Facultad de Microbiogía, Universidad de Costa Rica, San José, Costa Rica

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: EH. Contributed reagents/materials/analysis tools: MS AR. Wrote the paper: EH MS JMG AR KM.