واکسیناسیون روتاویروس علامت فصلی اسهال دوران کودکی را به عصر پیش از زایمان در برزیل می دهد

Rotavirus vaccination policies were associated with a shift in the timing of seasonal peaks in children under 5, reminiscent of the summer diarrhea period common decades prior. Additionally, young children were shown to have distinct disease patterns compared to other age groups, suggesting different etiologies.