That said, vaccine makers are currently testing newer formulations of the vaccines that target Omicron specifically, and those appear to be more effective at preventing symptomatic disease.

就是说，疫苗制造商目前正在测试特别针对奥密克戎的更新的疫苗配方，而这种疫苗似乎能更有效地预防症状对应疾病。

And many of us are working on testing different formulations and different dosages and different time lines, and hopefully, all this work will lead to a change in recommendations in the future.

我们中的许多人都在努力测试不同的配方、不同的剂量和不同的时间线，希望所有这些工作能在未来导致建议的改变。