The smallpox vaccine has saved many lives.

天花疫苗挽救了许多人的生命。

The polio vaccine has saved millions of lives.

脊髓灰质炎疫苗挽救了数以百万计的生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那儿候诊时，我读了一接种疫苗的宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计算机辅助疫苗设计是生物医学程研究的一个新领域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉疫苗。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病毒给予科学家发现疫苗的新希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感疫苗。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传接种疫苗的好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹症的疫苗。

His team are at the forefront of scientific research into vaccines.

他的小组处疫苗科研的最前沿。

Were you vaccinated against smallpox as a child?

你小时候打过天花疫苗吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感开始大面积传播开来，疫苗急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述了减毒活疫苗、子孢子疫苗和核酸疫苗的研究进展。

Smallpox can be contained by vaccination.

种牛痘疫苗可以控制住天花。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟原虫裂殖子表面蛋白1是当今疟疾疫苗主要的候选抗原。

Vaccinations ensure one against diseases.

接种疫苗可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹疫苗能预防麻疹，服脊髓灰质炎三价混合疫苗能预防小儿麻痹症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目的制备禽流感病毒特异性转移因子并探讨其对禽流感灭活疫苗的免疫增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣原体灭活疫苗的效检动物模型是可行的。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一个实现了由政府出资，免费为2至13岁儿童补种乙肝疫苗，并取得了明显效果。

The smallpox vaccine has saved many lives.

天花挽救了许多人的生命。

The polio vaccine has saved millions of lives.

脊髓灰质炎挽救了数以百万计的生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那候诊时，我读了一些关于接种的宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计算机辅助设计是生物医学程研究的一个新领域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病毒给予科学家发现的新希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传关于接种的好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，童都按照常规接种防治小症的。

His team are at the forefront of scientific research into vaccines.

他的小组处于科研的最前沿。

Were you vaccinated against smallpox as a child?

你小时候打过天花吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感开始大面积传播开来，供应告急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述了减毒活、子孢子和核酸的研究进展。

Smallpox can be contained by vaccination.

种牛痘可以控制住天花。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟原虫裂殖子表面蛋白1是当今疟疾主要的候选抗原。

Vaccinations ensure one against diseases.

接种可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种疹能预防疹，服脊髓灰质炎三价混合能预防小症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目的制备禽流感病毒特异性转移因子并探讨其对禽流感灭活的免增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣原体灭活的效检动物模型是可行的。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一个实现了由政府出资，免费为2至13岁童补种乙肝，并取得了明显效果。

The smallpox vaccine has saved many lives.

天花疫苗挽许多人生命。

The polio vaccine has saved millions of lives.

脊髓灰质炎疫苗挽以百万计生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那儿候诊时，我读一些关于接种疫苗宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计算机辅助疫苗设计是生物医学程一个新领域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉疫苗。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病毒给予科学家发现疫苗新希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感疫苗。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传关于接种疫苗好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹症疫苗。

His team are at the forefront of scientific research into vaccines.

他小组处于疫苗科最前沿。

Were you vaccinated against smallpox as a child?

你小时候打过天花疫苗吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感开始大面积传播开来，疫苗供应告急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述减毒活疫苗、子孢子疫苗和核酸疫苗进展。

Smallpox can be contained by vaccination.

种牛痘疫苗可以控制住天花。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟原虫裂殖子表面蛋白1是当今疟疾疫苗主要候选抗原。

Vaccinations ensure one against diseases.

接种疫苗可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹疫苗能预防麻疹，服脊髓灰质炎三价混合疫苗能预防小儿麻痹症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目制备禽流感病毒特异性转移因子并探讨其对禽流感灭活疫苗免疫增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣原体灭活疫苗效检动物模型是可行。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一个实现由政府出资，免费为2至13岁儿童补种乙肝疫苗，并取得明显效果。

The smallpox vaccine has saved many lives.

天花疫苗许多人的生命。

The polio vaccine has saved millions of lives.

脊髓灰质炎疫苗数以百万计的生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那儿候诊时，我读一些关于接种疫苗的宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计算机辅助疫苗设计是生物医学程的一个新领域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉疫苗。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病毒给予科学家发现疫苗的新希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感疫苗。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传关于接种疫苗的好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹症的疫苗。

His team are at the forefront of scientific research into vaccines.

他的小组处于疫苗科的最前沿。

Were you vaccinated against smallpox as a child?

你小时候打过天花疫苗吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感开始大面积传播开来，疫苗供应告急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述减毒活疫苗、子孢子疫苗和核酸疫苗的展。

Smallpox can be contained by vaccination.

种牛痘疫苗可以控制住天花。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟原虫裂殖子表面蛋白1是当今疟疾疫苗主要的候选抗原。

Vaccinations ensure one against diseases.

接种疫苗可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹疫苗能预防麻疹，服脊髓灰质炎三价混合疫苗能预防小儿麻痹症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目的制备禽流感病毒特异性转移因子并探讨其对禽流感灭活疫苗的免疫增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣原体灭活疫苗的效检动物模型是可行的。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一个实现由政府出资，免费为2至13岁儿童补种乙肝疫苗，并取得明显效果。

The smallpox vaccine has saved many lives.

天花疫苗挽救了许多人的生命。

The polio vaccine has saved millions of lives.

脊髓灰质炎疫苗挽救了数以百万计的生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那儿，我读了一些关于接种疫苗的宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计算机辅助疫苗设计是生物医学程研究的一个新领域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉疫苗。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病给予科学家发现疫苗的新希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感疫苗。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传关于接种疫苗的好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹症的疫苗。

His team are at the forefront of scientific research into vaccines.

他的小组处于疫苗科研的最前沿。

Were you vaccinated against smallpox as a child?

你小打过天花疫苗吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感开始大面积传播开来，疫苗供应告急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述了疫苗、子孢子疫苗和核酸疫苗的研究进展。

Smallpox can be contained by vaccination.

种牛痘疫苗可以控制住天花。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟原虫裂殖子表面蛋白1是当今疟疾疫苗主要的选抗原。

Vaccinations ensure one against diseases.

接种疫苗可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹疫苗能预防麻疹，服脊髓灰质炎三价混合疫苗能预防小儿麻痹症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目的制备禽流感病特异性转移因子并探讨其对禽流感灭疫苗的免疫增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣原体灭疫苗的效检动物模型是可行的。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一个实现了由政府出资，免费为2至13岁儿童补种乙肝疫苗，并取得了明显效果。

The smallpox vaccine has saved many lives.

天花疫苗挽救了许多人生命。

The polio vaccine has saved millions of lives.

脊髓灰质炎疫苗挽救了数以百万计生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那儿候诊时，我读了一些关于接种疫苗宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计算机辅助疫苗设计是生物医学程究一域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉疫苗。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病毒给予学家发现疫苗希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感疫苗。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传关于接种疫苗好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹症疫苗。

His team are at the forefront of scientific research into vaccines.

他小组处于疫苗最前沿。

Were you vaccinated against smallpox as a child?

你小时候打过天花疫苗吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感开始大面积传播开来，疫苗供应告急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述了减毒活疫苗、子孢子疫苗和核酸疫苗究进展。

Smallpox can be contained by vaccination.

种牛痘疫苗可以控制住天花。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟原虫裂殖子表面蛋白1是当今疟疾疫苗主要候选抗原。

Vaccinations ensure one against diseases.

接种疫苗可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹疫苗能预防麻疹，服脊髓灰质炎三价混合疫苗能预防小儿麻痹症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目制备禽流感病毒特异性转移因子并探讨其对禽流感灭活疫苗免疫增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣原体灭活疫苗效检动物模型是可行。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一实现了由政府出资，免费为2至13岁儿童补种乙肝疫苗，并取得了明显效果。

The smallpox vaccine has saved many lives.

天挽救了许多人的生命。

The polio vaccine has saved millions of lives.

脊髓灰质炎挽救了数以百万计的生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那儿候诊时，我读了一些关于接种的宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计算机辅助设计是生物医学程研究的一个新领域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病毒给予科学家发现的新希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传关于接种的好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹症的。

His team are at the forefront of scientific research into vaccines.

他的小组处于科研的最前沿。

Were you vaccinated against smallpox as a child?

你小时候打过天吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感开始大面积传播开来，供应告急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述了减毒活、子孢子和核酸的研究进展。

Smallpox can be contained by vaccination.

种牛痘可以控制住天。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟殖子表面蛋白1是当今疟疾主要的候选抗。

Vaccinations ensure one against diseases.

接种可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹能预防麻疹，服脊髓灰质炎三价混合能预防小儿麻痹症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目的制备禽流感病毒特异性转移因子并探讨其对禽流感灭活的免增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣体灭活的效检动物模型是可行的。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一个实现了由政府出资，免费为2至13岁儿童补种乙肝，并取得了明显效果。

The smallpox vaccine has saved many lives.

天花挽救了许多人的生命。

The polio vaccine has saved millions of lives.

脊炎挽救了数以百万计的生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那儿候诊时，我读了一些关于接种的宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计算机辅助设计是生物医学程研究的一个新领域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病毒给予科学家发现的新希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传关于接种的好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹症的。

His team are at the forefront of scientific research into vaccines.

他的小组处于科研的最前沿。

Were you vaccinated against smallpox as a child?

你小时候打过天花吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感开始大面积传播开来，供应告急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述了减毒活、子孢子和核酸的研究进展。

Smallpox can be contained by vaccination.

种牛可以控制住天花。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟原虫裂殖子表面蛋白1是当今疟疾主要的候选抗原。

Vaccinations ensure one against diseases.

接种可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹能预防麻疹，服脊炎三价混合能预防小儿麻痹症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目的制备禽流感病毒特异性转移因子并探讨其对禽流感灭活的免增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣原体灭活的效检动物模型是可行的。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一个实现了由政府出资，免费为2至13岁儿童补种乙肝，并取得了明显效果。

The smallpox vaccine has saved many lives.

天花疫苗挽救了许多人的生命。

The polio vaccine has saved millions of lives.

脊髓灰质炎疫苗挽救了数以百万计的生命。

I read some publicity about vaccinations while waiting my turn at the doctor’s.

在医生那儿候诊时，我读了一些关于接种疫苗的宣传。

Computer aid vaccine design (CAVD) is a new area of biom edical engin eering.

计助疫苗设计是生物医学程研究的一个新领域。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉疫苗。

Identifying the virus gave scientists fresh hope of discovering a vaccine.

鉴定病毒给予科学家发现疫苗的新希望。

She takes a vaccine against influenza every fall.

她每年秋季接种流感疫苗。

Health workers spread the word about the benefits of immunisation.

医疗作者宣传关于接种疫苗的好处。

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹症的疫苗。

His team are at the forefront of scientific research into vaccines.

他的小组处于疫苗科研的最前沿。

Were you vaccinated against smallpox as a child?

你小时候打过天花疫苗吗？

Vaccine supplies started to run dry as the flu outbreak reached epidemic proportions.

流感面积传播来，疫苗供应告急。

This paper summarized the research advance in the live attenuated vaccine,sporozoite vaccine and DNA vaccine.

综述了减毒活疫苗、子孢子疫苗和核酸疫苗的研究进展。

Smallpox can be contained by vaccination.

种牛痘疫苗可以控制住天花。

The major Merozoite Surface Protein 1(MSP1) of Plasmodium falciparum is an important candidate for malaria vaccine.

恶性疟原虫裂殖子表面蛋白1是当今疟疾疫苗主要的候选抗原。

Vaccinations ensure one against diseases.

接种疫苗可以预防疾病。

If vaccinal measles vaccine can prevent hives, take a poliomyelitis tervalent mixture vaccine can prevent a poliomyelitis to wait.

如接种麻疹疫苗能预防麻疹，服脊髓灰质炎三价混合疫苗能预防小儿麻痹症等。

Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.

摘要目的制备禽流感病毒特异性转移因子并探讨其对禽流感灭活疫苗的免疫增效作用。

So it is feasible to use mice for assaying potency of the inactivated vaccine against dairy cow chlamydiosis,thus replacing target animal dairy cow.

结果表明，用小鼠做牛衣原体灭活疫苗的效检动物模型是可行的。

Tianjin is also the first country to achieve a government-funded, free for children aged 2-13 resow hepatitis B vaccine, and have achieved remarkable results.

天津市还在全国第一个实现了由政府出资，免费为2至13岁儿童补种乙肝疫苗，并取得了明显效果。