With over 25 million children missing at least one vaccination in 2021 alone, outbreaks of preventable diseases, including measles, diphtheria, polio and yellow fever are already becoming more prevalent and severe.
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“大力补种”举措旨在保护人们免受疫苗可预防疾病暴发的影响，挽救儿童生命并加强国家卫生系统。
The Big Catch-up aims to protect populations from vaccine-preventable outbreaks, save children’s lives and strengthen national health systems.
While calling on people and governments in every country to play their part in helping to catch up by reaching the children who missed out, The Big Catch-up will have a particular focus on the 20 countries where three quarters of the children who missed vaccinations in 2021 live*.
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尽管全球覆盖水平有所下降，但也有一些复原力的亮点。
Although global coverage levels have declined, there have also been bright spots of resilience.
For example, early reports indicate India saw a strong recovery in essential immunization in 2022, while Uganda maintained high coverage levels during the pandemic.
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各国在帮助脆弱群体方面也取得了一定成功。
Countries have also been successful at reaching groups in vulnerable situations.
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例如，在肯尼亚，与社区卫生工作者和地方领导人的合作提高了该国北部游牧人口的免疫水平。
In Kenya, for instance, collaborations with community health workers and local leaders have improved levels of immunization among nomadic populations in the north of the country.
To ensure progress on childhood immunization, partners are working with countries to strengthen health care workforces, improve health service delivery, build trust and demand for vaccines within communities, and address gaps and obstacles to restoring immunization.
In addition to catching-up on childhood immunization, intensified efforts are needed to introduce the human papillomavirus (HPV) vaccine to adolescents to prevent cervical cancer, particularly in low- and middle-income countries where the burden is highest.
WHO Director-General Dr Tedros Adhanom Ghebreyesus said: "Millions of children and adolescents, particularly in lower-income countries, have missed out on life-saving vaccinations, while outbreaks of these deadly diseases have risen.