Technical staff from the Spanish Medicines Agency certified the delivery on Tuesday morning, minutes after its arrival at the warehouse.
According to the plan established by the company, this first shipment is made up of 357 boxes, with each containing100 doses.
The vaccines will be distributed on an equitable basis among the regional governments on Wednesday and Thursday, provided that the weather conditions so permit.
The agreement with Moderna establishes that the number of doses will progressively increase in the following shipments, up to a total of 599,500 doses over the next five weeks (until the third week of February, inclusive).
Specifically, 52,000 more doses are scheduled to arrive in the fourth week of January, 127,900 in the first week of February and 383,900 doses in the third week of February.
The Moderna vaccine uses Messenger RNA and requires two doses, as does the Pfizer vaccine.
These new doses are in addition to those of the Pfizer vaccine that have already been distributed, which have now exceeded 1 million this week.
Furthermore, the European Medicines Agency (EMA) received the application from Astrazeneca on Tuesday to assess its vaccine against COVID-19. The application will follow the same steps and controls as the Pfizer and Moderna vaccines and it is expected that at the end of the month - on 29 January - the EMA will issue its assessment.
Non official translation