Table 1.
Characteristics of patients with acute schistosomiasis fulfilling the inclusion criteria
| Patient | Region of exposure | Reason for travel | Incubation time [days](1) | Time to diagnosis [days](2) | Eosinophils absolute[per μl] | PCR | Serology | Microscopy |
|---|---|---|---|---|---|---|---|---|
| 1 |
Rwanda |
Tourist |
57 |
62 |
5.400 |
pos |
pos |
S.m. |
| 2 |
Rwanda |
Tourist |
33 |
54 |
2.090 |
pos |
(pos) |
S.m. |
| 3 |
Mozambique |
Occupational |
28 |
42 |
2.860 |
pos |
pos |
Ø |
| 4 |
Ethiopia |
Occupational |
27 |
43 |
2.650 |
pos |
Ø |
Ø |
| 5 |
Uganda |
Occupational |
38 |
56 |
1.920 |
pos |
pos |
Ø |
| 6 |
Uganda |
Occupational |
20 |
32 |
1.600 |
pos |
pos |
n.a. |
| 7 |
Malawi |
Tourist |
18 |
20 |
1.050 |
pos |
pos |
n.a. |
| 8 |
Mozambique |
Tourist |
35 |
56 |
33.050 |
pos |
Ø |
n.a. |
| 9 |
Yemen |
Tourist |
40 |
54 |
1.540 |
pos |
pos |
Ø |
| 10 |
Malawi |
Tourist |
27 |
35 |
980 |
pos |
Ø |
Ø |
| 11(3) |
Kenya |
Tourist |
94 |
96 |
3.220 |
Ø |
pos |
Ø |
| 12 |
Kenya |
Tourist |
184 |
302 |
1.100 |
pos |
pos |
Ø |
| 13 |
Sudan |
Occupational |
27 |
33 |
3.350 |
pos |
Ø |
Ø |
| 14 |
Tanzania |
Volunteer |
75 |
88 |
5.880 |
pos |
pos |
n.a. |
| 15 |
East Africa |
Volunteer |
127 |
131 |
1.760 |
pos |
pos |
Ø |
| 16(4) |
Kenya |
VFR |
150 |
210 |
n.a. |
pos |
n.a. |
S.m. |
| 17 |
Uganda |
Tourist |
24 |
27 |
n.a. |
pos |
pos |
n.a. |
| 18 |
Malawi |
Tourist |
31 |
73 |
3.920 |
pos |
Ø |
n.a. |
| 19 |
East Africa |
Volunteer |
32 |
104 |
4.010 |
pos |
pos |
Ø |
| 20 |
Malawi |
Tourist |
31 |
34 |
1.780 |
Ø |
Ø |
Ø |
| 21 |
Mali |
Occupational |
23 |
32 |
1.140 |
pos |
Ø |
Ø |
| 22 |
Tanzania |
Volunteer |
62 |
66 |
2.800 |
pos |
Ø |
Ø |
| 23 |
Madagascar |
Tourist |
35 |
38 |
2.640 |
pos |
pos |
n.a. |
| 24 |
Madagascar |
Occupational |
92 |
261 |
890 |
pos |
pos |
n.a. |
| 25 |
Madagascar |
Occupational |
122 |
152 |
870 |
pos |
pos |
Ø |
| 26 |
East Africa |
Tourist |
24 |
36 |
3.150 |
pos |
pos |
Ø |
| 27 |
Tanzania |
Volunteer |
47 |
76 |
1.700 |
pos |
pos |
S.m. |
| 28 |
Tanzania |
Volunteer |
47 |
80 |
9.850 |
pos |
pos |
Ø |
| 29 |
Tanzania |
Volunteer |
62 |
94 |
2.310 |
pos |
pos |
Ø |
| 30 |
Tanzania |
Volunteer |
97 |
196 |
2.290 |
Ø |
pos |
Ø |
| 31 |
Madagsacar |
Occupational |
n.a. |
160 |
1.100 |
pos |
pos |
Ø |
| 32 |
Madagascar |
Tourist |
17 |
43 |
1.020 |
pos |
pos |
S.m. |
| 33(5) |
Ghana |
VRF |
31 |
69 |
1.200 |
pos |
pos |
n.a. |
| 34 |
Madagascar |
Tourist |
23 |
34 |
1.210 |
pos |
pos |
n.a. |
| 35 |
Uganda |
Tourist |
41 |
53 |
2.900 |
pos |
Ø |
n.a. |
| 36 |
Madagascar |
Tourist |
25 |
42 |
23.300 |
pos |
pos |
S.m. |
| 37 |
Ghana |
Tourist |
40 |
46 |
1.660 |
pos |
pos |
n.a. |
| 38 | Tanzania | Tourist | 27 | 119 | 2.340 | pos | pos | n.a. |
(1): Time from exposure to beginning of clinical symptoms.
(2): Time from exposure to diagnostics.
(3): Less than 2 ml of Serum was available for DNA extraction.
(4): Patient evaluated for liver transplantation due to known Hepatitis B Virus infection and eosinophilia after visiting her family.
(5): Patient with meningitis and eosinophils in cerebrospinal fluid, Schistosoma DNA detected by PCR in cerebrospinal fluid.
VFR Visiting relatives and friends.
n.a. Not available.
pos Positive.
Ø Negative.
(pos) Only one of two different serological tests for schistosomiasis shows a positive result.
S.m. eggs of S.mansoni.