Table 1

RT-PCR for dengue virus RNA and ELISA results for detection of dengue virus NS1, IgM and IgG antibodies in human sera in Almukalla, Yemen
Categories of tested groups No. tested No. of patients positive for dengue RNA (%) No. of patients positive for NS1 antigen (%) No. of patients positive for any dengue virus antibodies (%) No. of patients positive for IgM, IgG, or both (%)
IgM alone (%) IgG alone (%) IgG & IgM (%)
Acute cases 207 2 (1) 97 (46.9)* 169 (81.6) 69 (33.3)† 6 (2.9)‡ 94 (45.4)§
Contacts 15 0 0 2 (13.3) 1 (6.7) 1 (6.7) 0

* Of these 97 NS1-positive patients, 79 (81.4%) patients were also positive for IgM.

† Of these 69 IgM-positive patients, 50 (72.5%) patients were also NS1-positive.

‡ Considered to have acute dengue and past exposure to another dengue serotype based on positive NS1 and IgG.

§ Of these 94 IgM/IgG-positive patients, 29 (30.9%) patients were also NS1-positive.

Madani et al.

Madani et al. BMC Infectious Diseases 2013 13:136   doi:10.1186/1471-2334-13-136

Open Data