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Table 4 Detailed case investigation activities (Secondary data analysis)

From: Performance and feasibility of reactive surveillance and response strategies for malaria elimination in Vietnam: a mixed-methods study

 

Paper-based systema

eCDS—MMSb

Total

Travelling history

 No

2566 (20.5%)

116 (24.8%)

2682 (20.7%)

 Yes

9028 (72.2%)

351 (75.2%)

9379 (72.3%)

 Missing

904 (7.2%)

0 (0.0%)

904 (7.0%)

Directly observed treatment of anti-malaria treatment by health staff

 No

60 (0.5%)

0 (0.0%)

60 (0.5%)

 Yes

342 (2.7%)

446 (95.5%)

788 (6.1%)

 Missing

12,096 (96.8%)

21 (4.5%)

12,117 (93.5%)

Global Positioning System (GPS) mapping

 No

-na-

-na-

-na-

 Yesc

27 (0.2%)

-na-

27 (0.2%)

 Missing

12,471 (99.8%)

467 (100.0%)

12,938 (99.8%)

Fever in family members of index case

 No

10,982 (87.9%)

0 (0.0%)

10,982 (84.7%)

 Yes

462 (3.7%)

37 (7.9%)

499 (3.8%)

 Missing

1054 (8.4%)

430 (92.1%)

1484 (11.4%)

Fever in neighbouring households of index case

 No

10,294 (82.4%)

0 (0.0%)

10,294 (79.4%)

 Yes

1033 (8.3%)

144 (30.8%)

1177 (9.1%)

 Missing

1171 (9.4%)

323 (69.2%)

1494 (11.5%)

  1. aMicrosoft Excel-based dataset for malaria case-based data collected via paper-based reporting system between January 2017 and December 2020
  2. bElectronic Communicable Disease Surveillance system used in 2021
  3. cNo GPS coordinates, only the name of location was recorded