Extended Data Fig. 2: The prevention of mother-to-child transmission of hepatitis B virus service cascade in the scale-up stage of SHIELD.

The population in Bao’an district was 4,476,554, and there were 1,951,778 women. 98,391 pregnant women received HBsAg testing, and 8643 pregnant women were HBsAg positive. 8610 HBsAg-positive pregnant women enrolled in care, of which 5290 completed PVST and 5269 succeeded in preventing MTCT. The fill colors of bar represent data sources from official statistics of the seventh Shenzhen census (light pink) (http://www.sz.gov.cn/zfgb/2021/gb1199/content/post_8806392.html) and SHIELD (blue). HBsAg, hepatitis B surface antigen; PVST, postvaccination serological testing; PMTCT, prevention of mother-to-child transmission. (http://www.sz.gov.cn/zfgb/2021/gb1199/content/post_8806392.html) and SHIELD (blue).