Since the end of the previous century, the government has ramped up the number of measures to reduce emissions of air pollutants. RIVM research has shown that the number of people who died after multiple days with elevated concentrations in the air of these pollutants dropped by around 25% between 1995 and 2019.

Some antifungal drugs, such as those working against Aspergillus fumigatus and Candida, are becoming less effective due to an increase in resistance. As a result, it is becoming more difficult to treat people with these fungal infections.