Expert panel pushes USA TODAY’s COVID-19 vaccine clock ahead on positive news, but logistical challenges loom in getting doses to Americans.
Author: Elizabeth Weise and Karen Weintraub, USA TODAY
Johnson & Johnson pauses COVID-19 vaccine trial after unexplained illness, the second US trial now on hold
The Phase 3 clinical trial was temporarily halted Monday because of an unexplained illness in one of the participants, Johnson & Johnson said.