Specifying the number of cases is difficult because of unreported cases and reinfections.
The Omicron variant, which is dominating the surge around the world, accounts for almost all new cases reported daily.
In the Madrid region, they are "not particularly worried".
A four-week minimum period criticised as an "immunological absurdity".
The Son Espases Microbiology laboratory confirms that the BA.2 subvariant is already present in the Balearics.
This might have helped Omicron replace Delta as the dominant variant and spread rapidly.
"On the contrary, globally the conditions are ideal for more variants to emerge."
The system will reduce the workload at health centres.
Omicron and inflation are the most obvious explanations.
Spain's coronavirus infection rate dropped for the first time in two and a half months.
The winter sales not producing the hoped-for business.
The omicron variant suggests that the peak of this sixth wave will not arrive until the end of the month.
Isabel Sola of Spain's National Biotechnology Centre, where Omicron was first analysed.
The price could be around half of what it is at present in a month's time.