Table 2. Deletions in large and middle S proteins and association with anti-HBs status.

	Deleted amino acids positions (length)
Sample	pre-S1 region	pre-S2 region
Concurrent HBsAg/anti-HBs
LDA 232	64–81 (18 aa)	–
LDA 265	–	22 (1 aa)
LDA 423	–	19–22 (4 aa)
LDA 470	–	17–22 (6 aa)
LDA 489	–	17–22 (6 aa)
HBsAg without anti-HBs
LDA 405	3–12 (10 aa)	–