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Parvovirus infection — Clinical Guidelines

Overview

Parvovirus B19 (B19V) is a small, single-stranded DNA virus capable of causing a range of clinical manifestations from mild erythema infectiosum (fifth disease) to severe complications in immunocompromised individuals and pregnant women, including fetal hydrops and fetal loss 1 5.

Diagnosis

Clinical Symptoms: Erythema, arthropathy, and in severe cases, pancytopenia and fetal complications 1 5 6.

Serological Tests: Detection of IgM and IgG antibodies using ELISA methods 3.

Molecular Testing: Quantitative PCR for viral DNA detection and genotyping 4.

Imaging and Histopathology: Useful in identifying interstitial pneumonia and skin lesions, respectively 6 5.

Management

Supportive Care: Focus on symptom management and monitoring for complications 1 5.

Folic Acid Supplementation: Particularly in cases of pancytopenia where deficiencies may contribute 6.

Monitoring: Regular fetal surveillance in pregnant women with B19V infection 1.

Special Populations

Pregnancy: Increased risk of fetal complications including hydrops fetalis; close monitoring essential 1.

Pediatrics: Commonly presents with "slapped cheek" rash and arthropathy; less severe outcomes generally 1 5.

Immunocompromised: Higher risk of severe complications such as pancytopenia; vigilant monitoring required 6.

Key Recommendations

Enhanced Surveillance in Pregnant Women: Implement increased surveillance for B19V infection in pregnant women due to heightened fetal risks 1 (Evidence: Strong).

Serological Screening: Regular serological screening for B19V in blood donors to prevent transfusion-related transmission 3 (Evidence: Moderate).

Molecular Diagnosis: Utilize quantitative PCR for accurate diagnosis and genotyping of B19V in clinical samples 4 (Evidence: Strong).

Fetal Monitoring: Pregnant women with B19V infection should undergo frequent fetal monitoring to detect and manage potential complications early 1 (Evidence: Moderate).

References

1 Tassis B, Testa L, Pampo F, Boito S, Tiso G, Accurti V et al.. The 2024 Outbreak of Parvovirus B19 as a Global Obstetrical Threat Insights From an Obstetrics Referral Center in Northern Italy. Journal of medical virology 2024. link 2 Kaur C, Asrith KP, Ramachandra SG, Hegde NR. Immunoinformatics-guided recombinant polypeptide-based enzyme-linked immunosorbent assay for seromonitoring of laboratory animals for minute virus of mice and Kilham rat virus. PloS one 2024. link 3 Göral Ş, Yenicesu İ, Bozdayı G, Duyan Çamurdan A, Altay Koçak A. Parvovirus B19 seroprevalence in Turkish blood donors. Turkish journal of medical sciences 2018. link 4 Toppinen M, Norja P, Aaltonen LM, Wessberg S, Hedman L, Söderlund-Venermo M et al.. A new quantitative PCR for human parvovirus B19 genotypes. Journal of virological methods 2015. link 5 Sasidharan CK, Sugathan P, Mampilly N, Agarwal R, Khare S, Lal S et al.. Red baby syndrome a new disease due to parvovirus B-19 observed in Kerala. Indian journal of pediatrics 2009. link 6 Kobayashi S, Maruta A, Yamamoto T, Katayama N, Higuchi R, Sakano Y et al.. Human parvovirus B19 capsid antigen in granulocytes in parvovirus-B19-induced pancytopenia after bone marrow transplantation. Acta haematologica 1998. link 7 Fritz B, Moore K, Naides SJ. A combined pseudoreplica-immunochemical technique for research and diagnostic virology. Microscopy research and technique 1992. link

Parvovirus infection