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Clinical Case of Parvovirus B19 Infection in Pregnant Woman with Β-Thalassemia in Bulgaria by S. Voleva, V. Manolov, St. Krumova, B. Marinov, V. Vasilev, S. Shishkov, L. Nikolaeva-Glomb

A pregnant 30-year-old female in the 34th gestational week was admitted at University “Maichin Dom” Hospital prior to childbirth. The patient is diagnosed with β-thalassemia. During laboratory screening hemoglobin of 98 g/L was established. Blood smear shows mild microcytic hypochromic anemia: RBC 5.15 x 1012/L, HGB 98 g/L, MCV 65.8 fL, MCH 19.4 pg, MCHC 295 g/L. Serum iron concentration is 12.9 µmol/L and ferritin 17.5 µg/L.
For the delivery process cesium was considered. Two days after procedure a rash presented on face, hands and breasts.
Although the mother was positive for parvovirus B19 infection, the baby was negative. This was confirmed by se-rological and molecular investigations. We discovered only the mother’s B19V IgG antibodies in the newborn. In connection to the main disease, namely β-thalassemia, acute virus infection could cause aplastic crisis. After consultation with a hematologist, serum hepcidin concentration (an iron homeostasis regulator) was quantified: 19.4 µg/L.
ELISA test was used to prove B19V IgM antibodies in the mother. PCR analysis shows the presence of B19V DNA.
During infection, inflammatory cytokines increase hepcidin secretion, leading to iron deposition into cells.

DOI: 10.7754/Clin.Lab.2018.181023