Protocol on estimation of thrombocytopenia background rates in children aged 5 months to <15 years in low- and middle-income countries

Overview

This is a master protocol approved by the WHO Research Ethics Review Committee on 20 May 2025. The protocol will be used by study sites that will submit a protocol to their national ethics review committees. The only country specific changes that should be made are changes needed to facilitate translation into the local language and changes advised by the national ethics review committee.