The Spanish Health Minister noted that "scientific and official caution" forces him to "wait and that this is the decision by the European Medicines Agency. If confirmed, Trinidad Jimenez has noted that Spain, which acquired 37 million doses were thinking it takes two to achieve immunization, "eventually could achieve, although not required, to almost 80% of the population" .

Trinidad Jimenez has not yet closed population groups to be submitted as a priority to vaccination against influenza A. At the extraordinary Council of European Ministers of Health on Monday confirmed that the three priority groups for vaccination are still people suffering from chronic illness, pregnant women and health workers.

The enlargement of the risk groups should not be a problem because, ultimately, to reduce to a single dose vaccination, compared with the initial fears of international agencies and health authorities, there seems to be ample vaccine.