[Current view on Blastocystis species: clinical forms, diagnosis and treatment]

V V Maleev1, A K Tokmalaev2, G M Kozhevnikova2

  • 1Central Research Institute of Epidemiology.

Insights

Blastocystis spp. infections can cause mild to severe intestinal symptoms, including ulcerative necrotic lesions. However, most infections are asymptomatic, indicating a need for balanced understanding of its pathogenicity.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Gastroenterology

Background:

  • Blastocystis spp. are common intestinal protozoan parasites.
  • Infections can range from asymptomatic to severe gastrointestinal distress.

Purpose of the Study:

  • To analyze the spectrum of Blastocystis spp. infection symptoms.
  • To evaluate the clinical significance and pathogenicity of Blastocystis spp.

Main Methods:

  • Review of clinical case studies.
  • Analysis of patient symptomology and diagnostic data.

Main Results:

  • Symptomatic Blastocystis spp. infections present with varied severity, from mild diarrhea to severe ulcerative necrotic intestinal lesions.
  • The majority of Blastocystis spp. infections are asymptomatic or associated with minor bowel dysfunction.

Conclusions:

  • Blastocystis spp. exhibit a wide range of clinical manifestations.
  • While severe pathology can occur, the overall pathogenicity of Blastocystis spp. may be overstated given the prevalence of asymptomatic cases.

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