Compare with picture 20, also related to the microscopical examination. Abel Arambola is manager of the Malaria Prevention Program (cf. picture 76).
Original Spanish caption to this photo:
Miércoles 19 mayo 93. Abel, preparando los slites para ser estudiados.
Wednesday 19 May 1993. Abel, preparing the microscope slides to be studied.
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With thankful credit to Damaris Cerdas (a Costa Rican citizen who photographed and annotated her volunteering experience to the Solomon Islands in 1993) for having given me permission to digitize her photo album (August 2016) and publish 98% of it under a Creative Commons BY-SA 4.0 license, which I have done here.