02 February 2022. Tens of thousands of tonnes of extra medical waste from the response to the Covid-19 pandemic has put tremendous strain on health care waste management systems around the world, threatening human and environmental health and exposing a dire need to improve waste management practices.https://www.khmertimeskh.com/501017576/tonnes-of-covid-19-health-care-waste-expose-urgent-need-to-improve-waste-management-systems/