# The virus killer: How blockchain contributes to the fight against COVID-19
“# The virus killer: How blockchain contributes to the fight against COVID-19 ” On Jan. 30, the South China Morning Post reported that one of the largest Asian pharmaceutical companies, Zuellig, had launched a blockchain-based system to track the quality of COVID-19 vaccines. Called “eZTracker,” it allows any user to “instantly verify the provenance and…