Table 1 Occurrence of Giardia duodenalis genotypes (assemblages A and B) by age, gender, geographical source and symptom of the 125 microscopy-positive patients enrolled in the study in Spain during 2012–2018
From: Epidemiological distribution of genotypes of Giardia duodenalis in humans in Spain
Group | Case count | No. PCR-positive | Assemblage | Clinical symptom | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | A + B | Abdominal pain | Bloating | Diarrhea | Nausea | Dehydration | Weight loss | Epigastric pain | Normal | |||
Age (years) | |||||||||||||
 0–5 | 46 | 38 | 6 | 31 | 1 | 37 (44) | 19 (24) | 7 (8) | 3 (3) | 2 (2) | 2 (2) | 0 | 1 (2) |
 6–12 | 22 | 16 | 3 | 13 | 0 | 16 (21) | 10 (13) | 2 (2) | 1 (1) | 0 | 1 (1) | 0 | 0 (1) |
 23–75 | 57 | 43 | 20 | 22 | 1 | 39 (53) | 11 (16) | 10 (14) | 0 | 0 | 1 (1) | 5 (6) | 4 (4) |
Gender | |||||||||||||
 Male | 67 | 55 | 15 | 39 | 1 | 52 (62) | 23 (29) | 9 (13) | 3 (3) | 1 (1) | 1 (1) | 3 (3) | 3 (5) |
 Female | 58 | 42 | 14 | 27 | 1 | 40 (56) | 17 (24) | 10 (11) | 1 (1) | 1 (1) | 3 (3) | 2 (3) | 2 (2) |
Geographical source | |||||||||||||
 Barcelona | 87 | 72 | 24 | 46 | 2 | 69 (83) | 28 (33) | 12 (13) | 3 (3) | 1 (1) | 2 (2) | 3 (3) | 3 (4) |
 Málaga | 13 | 8 | 3 | 5 | 0 | 7 (12) | 5 (9) | 1 (2) | 0 | 0 | 1 (1) | 1 (1) | 1 (1) |
 Mallorca | 6 | 5 | 1 | 4 | 0 | 5 (6) | 2 (2) | 0 | 0 | 0 | 0 | 1 (2) | 0 |
 Madrid | 6 | 4 | 0 | 4 | 0 | 4 (6) | 3 (5) | 3 (5) | 0 | 0 | 0 | 0 | 0 |
 Tarragona | 5 | 4 | 1 | 3 | 0 | 4 (4) | 1 (1) | 1 (1) | 0 | 0 | 1 (1) | 0 | 0 (1) |
 Sevilla | 3 | 2 | 0 | 2 | 0 | 2 (3) | 1 (2) | 1 (1) | 0 | 0 | 0 | 0 | 0 |
 Girona | 2 | 1 | 0 | 1 | 0 | 0 (1) | 0 | 0 | 0 | 0 | 0 | 0 | 1 (1) |
 Cadiz | 1 | 0 | 0 | 0 | 0 | 0 (1) | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
 Valladolid | 1 | 1 | 0 | 1 | 0 | 1 (1) | 0 | 1 (1) | 1 (1) | 1 (1) | 0 | 0 | 0 |
 Badajoz | 1 | 0 | 0 | 0 | 0 | 0 (1) | 0 (1) | 0 (1) | 0 | 0 | 0 | 0 | 0 |
 Subtotal | 125 | 97 | 29 | 66 | 2 | 92 (118) | 40 (53) | 19 (24) | 4 (4) | 2 (2) | 4 (4) | 5 (6) | 5 (7) |