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Table 3 Parasites detected by different diagnostic methods in the samples of the 1,477 infected patients

From: Intestinal parasitoses in a tertiary-care hospital located in a non-endemic setting during 2006–2010

Parasite

No. of parasites

Diagnostic methods

Maonly

Cbonly

Both M and Cb

PCRc

Both M and PCRc

Both C and PCRc

M, C, and PCRc

Both IC and Ma

Both IC and IFa

Protozoa

1,789

         

Blastocystis hominis

1,234

502 (5.64%)

55 (6.07%)

677 (74.2%)

-

-

-

-

-

-

Giardia intestinalis

168

0

-

-

-

-

-

-

163 (1.83%)

5 (0.06%)

Dientamoeba fragilis

149

41 (0.46%)

3 (0.33%)

0

60 (12.22%)

3 (0.61%)

39 (7.94%)

3 (0.61%)

-

-

Entamoeba coli

148

110 (1.24%)

0

38 (4.19%)

-

-

-

-

-

-

Entamoeba dispar

69

-

-

-

7 (0.77%)

26 (2.87%)

5 (0.55%)

31 (3.42%)

-

-

Cryptosporidium spp.

17

-

-

-

-

-

-

-

-

17 (0.19%)

Entamoeba histolytica

4

-

-

-

3 (0.33%)

1 (0.11%)

0

0

-

-

  

M a,e only

C b,f only

Both M and C b,f

ST d only

Both M and ST d,e

MA a only

Both M and MA a,g

  

Helminths

126

         

Strongyloides stercoralis

36

-

17 (1.88%)

29 (0.33%)

-

-

-

-

  

Enterobius vermicularis

35

27 (0.3%)

-

-

6 (5.17%)

2 (1.72%)

-

-

  

Hymenolepis nana

12

12 (0.13%)

-

-

-

-

-

-

  

Taenia saginata

12

0

-

-

-

-

3 (0.13%)

9 (0.10%)

  

Taenia spp.

9

7 (0.08%)

-

-

-

-

0

2 (0.02%)

  

Ascaris lumbricoides

9

7 (0.08%)

-

-

-

-

1 (0.01%)

1 (0.01%)

  

Trichuris trichiura

6

6 (0.07%)

-

-

-

-

0

0

  

Ancylostoma duodenale

4

0

4 (0.44%)

-

-

-

-

-

  

Dicrocoelium dendriticum

2

2 (0.02%)

-

-

-

-

-

-

  

Schistosoma mansoni

1

1 (0.01%)

-

-

-

-

-

-

  

Total

1,915

         
  1. M: Microscopic examination; C: Culture; IC: Immunocromatographic assay for the detection of specific antigens of Cryptosporidium parvum and Giardia intestinalis; IF: Immunofluorescence assay to detect Cryptosporidium spp. oocysts and G. intestinalis cysts; ST: Scotch Test; MA: Macroscopic examination; − : Method not applicable.
  2. a: in brackets the % on 8,886 patients are reported.
  3. b: in brackets the % on 906 patients are reported.
  4. c: in brackets the % on 906 and on 491 patients are reported, when PCR assays for the differentiation of E. histolytica and E. dispar and the real-time PCR assay for the identification of D. fragilis were respectively applied.
  5. d: in brackets the % on 116 patients are reported.
  6. e: microscopic examination is referred to ova identification.
  7. f: microscopic examination and culture are referred to larvae identification.
  8. g: microscopic examination is referred to ova identification and macroscopic identification of adult stages.
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BMC Infectious Diseases

ISSN: 1471-2334

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