The SARS-CoV-2 spike (S) protein is the target of vaccine design efforts to end the COVID-19 pandemic . Despite a low mutation rate, isolates with the D614G substitution in the S protein appeared early during the pandemic, and are now the dominant form worldwide.

高活性、高纯度、低内毒素、高批间一致性

-25~-15℃保存，收到货之日起，有效期1年。复溶后， -85~-65℃保存，3个月有效期。避免反复冻融。