Reacción a "When can I receive the third dose if I have recently been infected?"

There is no experimental data to tell us the ideal time to re-immunise after the disease has passed. Therefore, there are general considerations of the functioning of the immune system and, above all, of public health in these decisions. Suffice it to recall that last year, when we started vaccination and doses were scarce, the period was 6 months because up to that point there was acceptable protection.

With the arrival of the delta variant and the wide availability of vaccines this period was shortened.

Now we are faced with the omicron variant, which is and behaves very differently from the previous ones, and partially escapes vaccines and infections with previous variants.

This is why re-immunisation has been brought forward, as a delta-infected person can easily become infected with omicron.

From an immunological point of view, one month is probably not optimal, although the possibility of an omicron infection weighs heavily. However, the period would influence the level of efficacy of the response and protection against the new variant, but in no case would it represent a higher risk of adverse effects. It will not be harmful.

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