The Covid-19 pandemic has killed an estimated 80,000 to 180,000 healthcare workers from January 2020 till May this year, the World Health Organization (WHO) said. The estimates are derived

from a new WHO working paper based on the 3.45 million Covid-19 related deaths reported to WHO as at May 2021. "The backbone of every health system is its workforce. Covid-19 is a

powerful demonstration of just how much we rely on these men and women, and how vulnerable we all are when the people who protect our health are themselves unprotected," said WHO

Director-General Tedros Adhanom Ghebreyesus, at the WHO weekly Covid-19 briefing on Thursday.