This research was conducted by Hai Fang from Peking University, Dr. Zundong Yin from China CDC et al and published in Value in Health. The study has shown that between 1978 and 2017, diphtheria, tetanus, combined whole-cell pertussis vaccine (DTwP) and combined acellular pertussis vaccine (DTaP) vaccination prevented 93% of pertussis cases and 97% of deaths due to pertussis, with substantial cost benefits to the healthcare system and society as a whole.
Independent and joint associations of sex and birth order with non‑national immunization program vaccine coverage among Chinese children: a cross-sectional analysis
This research conducted by Prof. Xiaolin Xu and team from Zhejiang University, was published in the International Journal for Equity in Health. Based on a 2022 survey in Zhejiang and Henan provinces, the study analyzed the independent and joint associations of sex and birth order with non-National Immunization Program (non-NIP) vaccine coverage among Chinese children aged 1–6. The results showed that birth order was an important factor influencing vaccination, with the lowest coverage observed among later-born girls, particularly third or later-born daughters.