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The Janssen COVID‑19 vaccine, (Ad26.COV2.S) sold under the brand name Jcovden,is a COVID‑19 vaccine that was developed by Janssen Vaccines in Leiden, Netherlands.
The Janssen COVID‑19 vaccine, (Ad26.COV2.S) sold under the brand name Jcovden,is a COVID‑19 vaccine that was developed by Janssen Vaccines in Leiden, Netherlands.