Human parvovirus B19 associated with idiopathic thrombocytopenic purpura

Orhan Cem Aktepe1, Sevgi Yetgin, Lale Olcay

  • 1Hacettepe University, Faculty of Medicine, Department of Pediatrics, Section of Hematology, Ankara, Turkey; and Afyon Kocatepe University, Faculty of Medicine, Department of Microbiology, Afyon, Turkey.

Insights

Human parvovirus B19 (PVB19) is linked to idiopathic thrombocytopenic purpura (ITP). This study found PVB19 DNA or antibodies in nearly half of ITP patients, suggesting a potential role in the disorder.

Area of Science:

  • Virology
  • Hematology
  • Immunology

Background:

  • Human parvovirus B19 (PVB19) is primarily known for causing fifth disease.
  • Emerging evidence links PVB19 to hematologic disorders, including anemia and pancytopenia in immunocompromised individuals.

Observation:

  • This study investigated the presence of PVB19 in patients diagnosed with idiopathic thrombocytopenic purpura (ITP).
  • PVB19 DNA was detected using nested PCR, and serological responses (IgM and IgG) were assessed via ELISA.

Findings:

  • PVB19 viral genome was identified in the serum of 9 out of 19 ITP patients (47%).
  • Serological analysis revealed high rates of IgM (57%) and IgG (73%) positivity for PVB19 among the patients.

Implications:

  • These findings suggest a significant association between PVB19 infection and ITP in a substantial portion of patients.
  • The potential pathogenetic role of PVB19 in ITP warrants further investigation and consideration in clinical settings.

Related Concept Videos

Poliomyelitis01:17

Poliomyelitis

Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...
Cytomegalovirus Disease01:27

Cytomegalovirus Disease

Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...
Respiratory Syncytial Virus Disease01:29

Respiratory Syncytial Virus Disease

Human respiratory syncytial virus (RSV) is a widespread pathogen that primarily targets infants and young children but also poses a serious health risk to elderly and immunocompromised individuals. Belonging to the Pneumoviridae family, RSV is a negative-sense, single-stranded RNA virus within the Pneumovirus genus. Its global health burden is significant, with millions of cases annually resulting in hospitalizations and mortality, particularly in resource-limited settings. Although most...
Toxoplasmosis01:28

Toxoplasmosis

Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...