Diagnosis
Serology
- IgM antibody is detectable by 10 to 12 days after infection (peak viremia), and persists for up to 3 months
- IgG antibody is detectable about 2 weeks after infection and persists for life
| IgM | IgG | Interpretation |
|---|---|---|
| − | − | Susceptible |
| + | − | Acute infection |
| − | + | Remote infection, at least 3-4 months ago |
| + | + | Recent infection, within 2-3 months |
