Evaluating the Knowledge and Practice of Physicians Regarding Blastocystis hominis

Background: Blastocystis hominis is an enteric protozoan in humans and animals. This survey aimed to assess the knowledge and practice of physicians about B. hominis. Methods: This study was performed on physicians working in Ahvaz County, using a convenience sampling method from January to June 2020. Data were collected through face-to-face interviews and an electronic questionnaire. Descriptive statistics, including frequencies and percentages, were calculated for all variables. P-values < 0.05 were considered significant. Results: Our results showed that of the 352 physicians, 64.2% and 58.0% knew that B. hominis might cause abdominal pain and diarrhea, respectively, but their knowledge was poor about the possibility of extraintestinal clinical symptoms such as urticaria. Regarding the transmission route, 91.8% agreed that the fecal-oral route is the main mode of B. hominis transmission, but only 17.9% were aware of the role of host animals in its transmission. Furthermore, the physicians had poor knowledge of the need to treat symptomatic patients and resistance to metronidazole in some cases. More than two-thirds of the physicians (68%) had good practice treating infected immunocompromised patients but had poor practice treating symptomatic patients. Conclusions: This study emphasizes improving physicians’ knowledge of pathogenicity, clinical symptoms, and treating B. hominis. Since B. hominis is a common protozoan with pathogenic potential, we recommend training sessions for physicians to inform them of new findings about B. hominis.

[1]  A. Sin,et al.  Evaluation of association with subtypes and alleles of Blastocystis with chronic spontaneous urticaria. , 2022, Acta tropica.

[2]  D. Jirsová,et al.  A Study on the Prevalence and Subtype Diversity of the Intestinal Protist Blastocystis sp. in a Gut-Healthy Human Population in the Czech Republic , 2020, Frontiers in Cellular and Infection Microbiology.

[3]  M. Rudzińska,et al.  First Report on the Occurrence and Subtypes of Blastocystis in Pigs in Poland Using Sequence-Tagged-Site PCR and Barcode Region Sequencing , 2020, Pathogens.

[4]  L. Robertson,et al.  Opinions and knowledge on globally important foodborne parasites among healthcare professionals at a tertiary teaching hospital in Nigeria , 2020, Food and waterborne parasitology.

[5]  P. Criado,et al.  Characterization of subtypes of Blastocystis sp. isolated from patients with urticaria, São Paulo, Brazil , 2019, Parasite epidemiology and control.

[6]  I. Sharifi,et al.  Prevalence and Molecular Subtyping of Blastocystis from Patients with Irritable Bowel Syndrome, Inflammatory Bowel Disease and Chronic Urticaria in Iran , 2019, Acta Parasitologica.

[7]  J. Ramírez,et al.  A summary of Blastocystis subtypes in North and South America , 2019, Parasites & Vectors.

[8]  S. Bardosono,et al.  Blastocystis ST-1 is associated with Irritable Bowel Syndrome-diarrhoea (IBS-D) in Indonesian adolescences☆ , 2019, Parasite epidemiology and control.

[9]  Yongliang Zhang,et al.  Interactions between a pathogenic Blastocystis subtype and gut microbiota: in vitro and in vivo studies , 2019, Microbiome.

[10]  Suresh Kumar,et al.  Resistance towards metronidazole in Blastocystis sp.: A pathogenic consequence , 2019, PloS one.

[11]  V. Ortiz,et al.  Blastocystis subtypes and their association with Irritable Bowel Syndrome. , 2018, Medical hypotheses.

[12]  A. Bartlett,et al.  Physician Knowledge, Attitudes, and Practices Related to Chagas Disease in Tabasco, Mexico. , 2018, The American journal of tropical medicine and hygiene.

[13]  S. Ahmad,et al.  Knowledge, attitudes and practices related to cystic echinococcosis endemicity in Pakistan , 2018, Infectious Diseases of Poverty.

[14]  C. Clark,et al.  Current status of Blastocystis: A personal view. , 2016, Parasitology international.

[15]  M. Behzadifar,et al.  Prevalence and Genotype Analysis of Blastocystis hominis in Iran: A Systematic Review and Meta-Analysis , 2016 .

[16]  J. Ramírez,et al.  Blastocystis and urticaria: Examination of subtypes and morphotypes in an unusual clinical manifestation. , 2015, Acta tropica.

[17]  D. Stark,et al.  Update on the pathogenic potential and treatment options for Blastocystis sp , 2014, Gut Pathogens.

[18]  C. Texier,et al.  Blastocystis, an unrecognized parasite: an overview of pathogenesis and diagnosis , 2013, Therapeutic advances in infectious disease.

[19]  S. Monecke,et al.  Blastocystis sp. subtype 2 detection during recurrence of gastrointestinal and urticarial symptoms. , 2010, Parasitology international.

[20]  F. Dogruman-Al,et al.  Blastocystis subtypes in irritable bowel syndrome and inflammatory bowel disease in Ankara, Turkey. , 2009, Memorias do Instituto Oswaldo Cruz.

[21]  F. Rahim,et al.  PCR-based molecular characterization of Blastocystis hominis subtypes in southwest of Iran. , 2018, Journal of infection and public health.