Line graph titled “Percentage of serum specimens positive for parvovirus B19–specific antibodies, by epidemiologic week.” The x-axis represents epidemiologic weeks (1 to 52), and the y-axis shows the percentage of positive serum specimens, ranging from 0% to 10%, with a break above 10%.
Three lines represent data for different years:
2025 (solid dark blue line): Starts at around 4.5% in week 1, increases gradually to about 8% by week 22, and remains steady.
2024 (dashed light blue line): Starts around 2%, climbs steadily, peaks around 9% in week 25, then drops sharply and gradually declines.
2023 (dotted blue line): Remains relatively flat, fluctuating between 0.5% and 2% throughout the year.
The graph shows a noticeable increase in parvovirus B19 antibody positivity in 2024 and 2025 compared to 2023.
#MMWR #AltComms
A morbidity and mortality weekly report (MMWR) released by CDC today found that the number of Parvovirus B19 infections is higher this year compared to last year. B19 activity typically peaks April through June.
www.cdc.gov/mmwr/volumes...