Table 1.

Groups of study participants and family members based on the serological test results

Positive test results	Study participants (n = 1997)	Under-5 children (n = 208)	Family members (n = 246)	Interpretation
1. HBsAg	14 (0.7%)	5 (2.4%)	0	Acute or chronic HBV infection
2. Anti-HBc	452 (22.6%)	34 (16.3%)	74 (30%)	Exposure to HBV, which may be acute, chronic or resolved infection
3. Both HBsAg and anti-HBc	116 (5.8%)	21 (10%)	22 (8.9%)	Acute or chronic HBV infection
4. Anti-HCV	4 (0.2%)	0	0	Present or previous HCV infection
5. Both anti-HBc and anti-HCV	5 (0.3%)	0	1 (0.4%)	Mixed HBV and HCV infections