Is there a rise in parvovirus B19 infections among pregnant people in Minnesota?
Recent reports indicate that pregnant women in Minnesota are experiencing more frequent parvovirus B19 infections than in the past. Laboratory data from 2024 shows a clear increase in positive test results compared to the period between 2018 and 2019 1. Field reports specifically note this rise in infection frequency among pregnant persons in the state 2.
What the research says
Commercial lab data confirms that positive human parvovirus B19 test results increased in 2024 versus the 2018-2019 baseline 1. This trend is supported by field observations noting a higher frequency of the infection among pregnant women in Minnesota 2. Additionally, antibody positivity in blood specimens rose during the first five months of 2025 compared to the same time in 2024 3.
Experts suggest that social distancing measures during the COVID-19 pandemic may have disrupted normal seasonal patterns of the virus, leading to a post-pandemic increase in infections 45. Following the pandemic, regions like Northwestern Europe saw a marked rise in congenital infections, a pattern that aligns with the increased detection seen in Minnesota 5.
What to ask your doctor
- What are the current infection rates for parvovirus B19 in my area?
- How often should I get tested if I am pregnant and have symptoms like fever or rash?
- What ultrasound monitoring is recommended if I test positive for the virus?
- Are there specific risks to the fetus if I contract parvovirus B19 during pregnancy?
- What are the treatment options if my baby develops anemia or hydrops fetalis?
This question is drawn from common patient questions about OB/GYN & Women's Health and answered using cited medical research. We do not provide individualized advice.