Vaccines from different manufacturers may behave differently in terms of safety or immunogenicity due to use of different viral strains, formulation or manufacturing processes.

不同制造商生产的疫苗在病毒株选用、配方或生产工艺方面都有所不同，因此在安全性或免疫原性上存在差异。

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Hepatology Digest: some new immune agents have been added to the therapy regime of some viral diseases and treatment of tumors, such as peptide vaccines.

《国际肝病》：一些新的免疫药物已经被应用于一些病毒感染性疾病和肿瘤的治疗中，例如，肽类疫苗等。

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Most important, the new technique enables the BCG vaccine, and potentially other bacterial and viral based vaccines, to be dried without the traditional problems associated with standard freezing.

最重要的是，该技术用于干燥卡介苗和其他细菌性或病毒性疫苗时，不会产生常规冷冻时的常见问题。

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Although the disease is currently a threat mainly to poultry, many are worried about the supply of anti-viral drugs and vaccines for a human pandemic.

ECONOMIST: Calls for more money as the threat looms ever larger | The

Like polio, smallpox was a viral disease for which effective, easily administered vaccines existed.

ECONOMIST: Can a businessmen��s club eradicate polio from the world?