Table 2.
Summary of investigations and symptoms for study participants fitting case definition (n = 9)
| No. | Study sample WHIF | Serology from case-finding | Symptoms | ||
|---|---|---|---|---|---|
| Infection at some time | Recent infection | Sputum DIF | Serology | ||
| 1 | No | No | Yes | n.d. | Fever, cough, sore throat, coryza |
| 2 | Yes | No | n.d. | Rising titre <1:16 then 1:32 | Fever, cough, sore throat, headache, coryza |
| 3 | Yes | Yes | n.d. | n.d. | None |
| 4 | No | No | Yes | ? | Fever, cough, sore throat, red eyes, coryza, myalgia, headache, diarrhoea |
| 5 | Yes | Yes* | n.d. | n.d. | Fever, cough, sore throat, headache |
| 6 | Yes | Yes | n.d. | n.d. | None |
| 7 | Yes | Yes | n.d. | n.d. | None |
| 8 | n.d. | n.d. | Yes | <1:16 (one sample) | Fever, cough, short of breath |
| 9 | n.d. | n.d. | Yes | Rising titre 1:16 then 1:32 | Fever, cough, short of breath, pneumonia, abdominal pain |
WHIF, Whole cell immunofluorescence; DIF, direct immunofluorescence; n.d., not done.
*
Serology on sample taken after study recruitment, as symptomatic after study.