Genotype 1 of human parvovirus B19 in clinical cases.

Rev Assoc Med Bras (1992) 2017 Mar;63(3):224-228

PhD, Scientific Researcher, Núcleo de Doenças Respiratórias, Instituto Adolfo Lutz, São Paulo, SP, Brazil.

Introduction:: Virus surveillance strategies and genetic characterization of human parvovirus B19 (B19V) are important tools for regional and global control of viral outbreak. In São Paulo, Brazil, we performed a study of B19V by monitoring the spread of this virus, which is an infectious agent and could be mistakenly reported as a rash and other types of infection.

Method:: Serum samples were subjected to enzyme immunoassay, real time polymerase chain reaction, and sequencing.

Results:: From the 462 patients with suspected cases of exanthematic infections, the results of the 164 serum samples were positive for B19V immunoglobulin M. Among these cases, there were 38 patients with erythema infections and B19-associated with other infections such as encephalitis, hydrops fetalis, chronic anemia, hematological malignancies. These samples were sequenced and identified as genotype 1.

Conclusion:: This study showed patients with infections caused by B19V and sequencing genotype 1. Continuous monitoring is necessary to detect all known genotypes, and the emergence of new genotypes of these viruses for case management in public health control activities.

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http://dx.doi.org/10.1590/1806-9282.63.03.224DOI Listing

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March 2017
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