Table 3. Laboratory diagnosis of suspected dengue cases referred NCLE, 2000–2012.
| Year | No. of samples received at NCLE | No. tested* | Rapid test | ELISA | RT–PCR positive | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IgM positive | IgG positive | IgM positive | IgG positive | ||||||||||
| n | % | n | % | n | % | n | % | n | % | n | % | ||
| 2000 | 16 | 10 | 62 | 1/10 | 10 | 1/10 | 10 | ND | ND | ND | |||
| 2001 | 89 | 45 | 50 | 12/45 | 28 | 16/45 | 35.6 | ND | ND | ND | |||
| 2002 | 54 | 25 | 46 | 7/25 | 28 | 13/25 | 52 | ND | ND | ND | |||
| 2003 | 40 | 24 | 60 | 8/24 | 33 | 12/24 | 50 | ND | ND | ND | |||
| 2004 | 23 | 7 | 30 | 1/7 | 14 | 1/7 | 14.3 | ND | ND | ND | |||
| 2005 | 5 | 4 | 80 | 2/4 | 50 | 1/4 | 25 | ND | ND | ND | |||
| 2006 | 31 | 25 | 80 | No data | No data | 20/25 | 80 | 14/25 | 56.0 | ND | |||
| 2007 | 178 | 124 | 69 | 13/28 | 45 | 11/28 | 39 | 93/124 | 75 | 52/77 | 67.5 | 66/179 | 37 |
| 2008 | 365 | 365 | 100 | 32/81 | 39 | 29/81 | 35 | 145/307 | 47 | ND | 63/172 | 37 | |
| 2009 | 530 | 506 | 95 | 126/257 | 49 | 96/257 | 37 | 115/258 | 44 | ND | 25/48 | 52 | |
| 2010 | 733 | 733 | 100 | 52/127 | 41 | 50/127 | 39 | 449/729 | 61 | ND | 90/131 | 69 | |
| 2011 | 111 | 111 | 100 | 0/2 | 0 | 0/2 | 0 | 49/111 | 44 | ND | 8/26 | 31 | |
| 2012 | 852 | 852 | 100 | ND | ND | 432/852 | 51 | ND | 109/242 | 45 | |||
* Reflects the number of sera processed by any diagnostic test (rapid test, ELISA and/or RT–PCR).
ELISA – enzyme-linked immunnosorbent assay; NCLE – National Center for Laboratory and Epidemiology; ND – not done; RT–PCR – real-time polymerase chain reaction.