Australia on Friday canceled a roughly $750 million plan for a large order of a locally developed coronavirus vaccine after the inoculation produced false positive test results for H.I.V. in some volunteers participating in a trial study. Of the dozens of coronavirus vaccines being tested worldwide, the Australian one was the first to be abandoned. While its developers said the experimental vaccine had appeared to be safe and effective, the false positives risked undermining trust in the effort to vaccinate the public. The government has said it plans to begin inoculating citizens by March.

Source: New York Times December 11, 2020 08:19 UTC