Open Access
Review
Table 1
Prevalence of Blastocystis sp. in humans in China.
| Location | Method of diagnosis | No. examined | No. positive | Prevalence (%) | Diarrhea | Subtypes (n) | References |
|---|---|---|---|---|---|---|---|
| Guangdong | In vitro culture | 2 | 2 | 100% | Yes | [24] | |
| Jiangxi | In vitro culture | 46,900 | 1122 | 2.39% | Yes | [59] | |
| PCR | 3 | 3 | 100% | NG | ST5 (2), ST3 + ST5 (1) | [61] | |
| Subtotal | 469,903 | 1125 | 2.40% | ST5 (2), ST3 + ST5 (1) | |||
| Anhui | Smear/Iodine/Hematoxylin | 703 | 26 | 3.70% | Yes | [57] | |
| Chongqing | Smear | 2558 | 35 | 1.37% | NG | [54] | |
| Guangxi | Smear/Trichrome | 1354 | 251 | 18.54% | Yes | [19] | |
| Smear | 39,671 | 1551 | 3.91% | Yes | [15] | ||
| Smear/Iodine | 1185 | 145 | 12.24% | Yes | [16] | ||
| Subtotal | 42,210 | 1947 | 4.61% | ||||
| Yunnan | PCR | 239 | 78 | 32.64% | NG | ST3 (56), ST1 (16), ST2 (1), ST4 (1), ST1 and 2 (1), ST1 and 3 (1), Unknown (3) | [21] |
| PCR | 170 | 10 | 5.88% | NG | ST3 (6), ST1 (3), ST2 (1) | [22] | |
| PCR | 1020 | 37 | 3.63% | Yes | [47] | ||
| Smear | 215 | 43 | 20.0% | Yes | [65] | ||
| Subtotal | 1644 | 168 | 10.22% | ST3 (62), ST1 (19), ST2 (2), ST4 (1), ST1 and 2 (1), ST1 and 3 (1), Unknown (3) | |||
| Shanghai | PCR | 1505 | 29 | 1.90% | NG | ST3 (17), ST1 (6), ST2 (1), ST6 (1), ST1 and 3 (2), Unknown (2) | [21] |
| Zhejiang | PCR | 646 | 153 | 23.68% | NG | ST3 (93), ST1 (38), ST2 (7), ST4 (1), ST1 and 3 (6), ST1 and 2 (1), ST2 and 3 (1), Unknown (6) | [21] |
| Beijing | Smear/Trichrome | 122 | 6 | 4.92% | Yes | [50] | |
| Henan | Smear/Iodine/In vitro culture | 369 | 22 | 5.96% | Yes | [25] | |
| Fujian | Smear/Iodine | 10,652 | 85 | 0.80% | NG | [7] | |
| Heilongjiang | PCR | 381 | 27 | 7.10% | Yes | ST1 (12), ST3 (15) | [55] |
| Total | 107,695 | 3625 | 3.37% | ST3 (186), ST1 (75), ST2 (10), ST4 (2), ST5 (2), ST6 (1), ST1 and 3 (9), ST1 and 2 (2), ST2 and 3 (1), ST3 + ST5 (1), Unknown (11) |
NG: Not given.
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