Adrian Hugo Aginagalde

Spokesperson of the Spanish Society of Preventive Medicine, Public Health and Health Management (SEMPSPGS), Head of Service of the Epidemiological Surveillance and Health Information Unit of Gipuzkoa and, previously, Head of Service of the Population Screening Programmes Unit at the Ministry of Health

Spanish Society of Preventive Medicine, Public Health and Healthcare Management (SEMPSPGS)

At present, a transmission period and an incubation period (10+10 days) have not yet elapsed since the first generation of cases of the Omicron variant, so it is very difficult to assess whether there is transmission from day 5 onwards.

In addition, most close contacts are identified within the first few days of symptoms, making it even more difficult to assess empirically whether or not transmission is occurring.

Nevertheless, taking the delta variant as a reference, the percentage of secondary cases that could escape seems low.

A European consensus along the lines of the ECDC guideline seems imperative to maintain common actions.

EN