Infectious Diseases Surveillance, Institute of Public Health of Navarra, Pamplona, Spain ; CIBER Epidemiología y Salud Pública (CIBERESP), Spain.
Transl Pediatr. 2014 Oct;3(4):275-7. doi: 10.3978/j.issn.2224-4336.2014.10.04.
The paper of Baxter et al., recently published in Pediatrics show through five cross-sectional studies, a high impact of vaccination in the decline of varicella incidence and hospitalizations in all age groups in the United States between 1995 and 2009. As a consequence of herd immunity, varicella incidence has also diminished in those non vaccinated, which indicates no shift in the burden of varicella to older age groups.
Baxter 等人最近在《儿科学》杂志上发表的论文通过五项横断面研究表明，1995 年至 2009 年期间，疫苗接种对美国所有年龄段的水痘发病率和住院率的下降产生了重大影响。由于人群免疫力的作用，未接种疫苗的人群的水痘发病率也有所下降，这表明水痘的负担没有转移到年龄较大的人群。
