- Leiden corona vaccine tested on humans as early as July AD.nl
- Leiden corona vaccine is already being tested on people in July at Parool.nl
- Testing next month with corona vaccine on people Telegraaf.nl
- Janssen Pharmaceutica will start testing candidate corona vaccine on humans VRT NWS next month
- Farmareus Johnson & Johnson will test corona vaccine on humans from next month, also in Belgium De Morgen
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