Interestingly, the percentage is higher (26%) in the southern provinces of Limburg and Noord-Brabant, which were hit hardest by the first wave due to a combination of Carnival (only celebrated in those areas) and differently timed February school vacations.
Some of this probably is a vaccination effect- they've noticed that women were more likely to have antibodies than men, and more of the female donors were healthcare workers.
https://www.sanquin.nl/over-sanquin/nieuws/2021/03/corona-an...
Interestingly, the percentage is higher (26%) in the southern provinces of Limburg and Noord-Brabant, which were hit hardest by the first wave due to a combination of Carnival (only celebrated in those areas) and differently timed February school vacations.
Some of this probably is a vaccination effect- they've noticed that women were more likely to have antibodies than men, and more of the female donors were healthcare workers.