Children were more often infected with subtype HRSV-A, while adults and elderly were more often infected with subtype HRSV-B, however observed merely as a slight trend (Fig. 3 C).
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Epidemiology and genetic diversity of human respiratory syncytial virus in Belgium between 2011 and 2019.
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The sentences
When compared to the total of positive samples, the number of positive tests has known an increasing trend in the adult and elderly population and a steep decreasing trend in the youngest age group.