usa pause covid vaccine
U.S. calls for pause on Johnson & Johnson Covid-19 vaccine after rare blood clots developed in six recipients

WASHINGTON —USA federal health agencies have on Tuesday called for pause on the use of.

single shot vaccine
U.S. approves single-dose COVID-19 vaccine Johnson & Johnson

  NEW BRUNSWICK– U.S. has approved a single-dose COVID-19 vaccine that was developed by the Janssen.