With New Rare Blood Clot Warning, J&J COVID-19 Vaccine Rollout Resumes In EU

Countries May Impose Age Restrictions

 
• By Andrew McConaghie
Janssen Leiden Netherlands
The Janssen vaccine's development was co-ordinated in Leiden, The Netherlands. The country was the first in the EU to say it would begin using the shot this week.

More from Vaccines

More from Pink Sheet