Review of Nano technology of Covid 19 vaccines

الملخص EN

The global current situation, no return to pre-Covid 19 social pattern unless development of safe preventive vaccines.

Fortunately, in the last few months since identity of SARS CoV-2more than two hundred academic laboratories &companies initiated vaccine development, and many are making record time in advancing to clinical trials (Pene, et.

al.

, (2003).