Dr Paul Alexander holds a PhD in evidence-based medicine. He has experience in epidemiology and in the teaching of clinical epidemiology, evidence-based medicine, and research methodology. He is a core member of GRADE and research methods groups out of McMaster's, Canada. Dr Alexander is a former Assistant Professor at McMaster University in evidence-based medicine and research methods; former COVID Pandemic evidence-synthesis consultant advisor to WHO-PAHO Washington, DC (2020) and former senior advisor to COVID Pandemic policy in Health and Human Services (HHS) Washington, DC (A Secretary)