Table 1 |
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|
Overview of 17 contact investigations (n.a.: information on these dates was not available) |
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|
Nr |
Flight arrival date Schiphol |
Dutch (DA)/foreign airline (FA) |
Origin |
PLCª used |
First date of illness |
Date of diagnosis |
Date request CT |
Date contacts identified |
Interval I: flight arrival - diagnosis |
Interval II: diagnosis - request CT |
Interval III: request CT - contact identified |
Total Delay (I + II + III) |
|
|
||||||||||||
|
1 |
27-4-09 |
DA |
Cancun |
No |
27-4 |
29-4 |
29-4 |
30-4 |
2 |
0 |
1 |
3 |
|
|
||||||||||||
|
2 |
30-4-09 |
DA |
Cancun |
No |
30-4 |
6-5 |
7-5 |
7-5 |
6 |
1* |
0 |
7 |
|
|
||||||||||||
|
3 |
6-5-09 |
DA |
Mex city |
Yes |
4-5 |
7-5 |
8-5 |
8-5 |
1 |
1 |
0 |
2 |
|
|
||||||||||||
|
4 |
6-5-09 |
DA |
Mex city |
Yes |
6-5 |
11-5 |
12-5 |
12-5 |
5 |
1** |
0 |
6 |
|
|
||||||||||||
|
5 |
14-5-09 |
FA |
Detroit |
No |
12-5 |
n.a. |
16-5 |
16-5 |
*** |
0 |
2 |
|
|
|
||||||||||||
|
6 |
21-5-09 |
DA |
NewYork |
No |
22-5 |
n.a. |
25-5 |
26-5 |
*** |
1 |
5 |
|
|
|
||||||||||||
|
7 |
29-5-09 |
DA |
Houston |
No |
29-5 |
n.a. |
2-6 |
2-6 |
*** |
0 |
4 |
|
|
|
||||||||||||
|
8 |
29-5-09 |
DA |
Houston |
No |
n.a. |
3-6 |
4-6 |
4-6 |
5 |
1** |
0 |
6 |
|
|
||||||||||||
|
9 |
2-6-09 |
DA |
NewYork |
No |
2-6 |
3-6 |
4-6 |
5-6 |
1 |
1 |
1 |
3 |
|
|
||||||||||||
|
10 |
8-6-09 |
DA |
Toronto |
No |
2-6 |
n.a. |
10-6 |
11-6 |
*** |
1 |
3 |
|
|
|
||||||||||||
|
11 |
13-6-09 |
DA |
NewYork |
No |
13-6 |
15-6 |
16-6 |
16-6 |
2 |
1 |
0 |
3 |
|
|
||||||||||||
|
12 |
18-6-09 |
DA |
Cancun |
Yes |
13-6 |
19-6 |
19-6 |
20-6 |
1 |
0 |
1 |
2 |
|
|
||||||||||||
|
13 |
14-6-09 |
DA |
Miami |
No |
13-6 |
16-6 |
17-6 |
18-6 |
2 |
1 |
1 |
4 |
|
|
||||||||||||
|
14 |
9-6-09 |
FA |
Boston |
No |
7-6 |
11-6 |
12-6 |
13-6 |
2 |
1 |
1 |
4 |
|
|
||||||||||||
|
15 |
14-6-09 |
DA |
Cancun |
Yes |
11-6 |
16-6 |
17-6 |
17-6 |
2 |
1 |
0 |
3 |
|
|
||||||||||||
|
16 |
14-6-09 |
DA |
Cancun |
Yes |
14-6 |
17-6 |
18-6 |
19-6 |
3 |
1 |
1 |
5 |
|
|
||||||||||||
|
17 |
18-6-09 |
DA |
Miami |
No |
18-6 |
20-6 |
20-6 |
23-6 |
2 |
1 |
2 |
5 |
|
|
||||||||||||
|
Mean (95%CI) |
2,6 (1,6-3,6) |
0,8 (0,6-1,1) |
0,6 (0,3-0,9) |
3,9 (3,2-4,7) |
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|
|
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|
*:. In the beginning of the pandemic one request for contact tracing was accepted after 7 days **: these late CT requests were accepted as the passenger lists of the concerned flights already were available from earlier contact investigations ***: date of diagnosis not known ª: Passenger Locator Card |
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|
Swaan et al. BMC Infectious Diseases 2011 11:355 doi:10.1186/1471-2334-11-355 |
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