Businesses and research facilities have joined a global effort to defeat the coronavirus. With respirators in short supply in many countries, a German university is developing rudimentary, no-frills devices to aid COVID-19 sufferers who are on the path to recovery, freeing fancier models for those whose lives are still in danger. VOA's Arash Arabasadi reports.
Scientists Create Simple Respirator for Partially Recovered COVID Patients
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