Ethics Statement and volunteer information
All expedition participants understood the nature of the study and gave the written consent. The ethics committee of Defence Institute of Physiology and Allied Sciences, Defence Research and Development Organisation, Delhi, India approved all the relevant parameters of the study. The study protocols were in accordance with the Helsinki’s approved guidelines.
Consent for Publication: Not applicable
Availability of Data and Material: Sequencing data reported in this paper is available at NCBI under the project no. PRJNA492714.