摘要
This short review analyzed the present status of different Covid-19 vaccine,their utility in Covid-19 control and as a tool of herd or community immunity.Most of the vaccines approved to date have insufficient data to predict their protective potential against COVID-19 virus infection and carriage(potential as silent spreader).We also not know the period of protective immunity and their ability to protect against variants of viruses emerging fast.The vaccine at the most can be used as personal protective shots against COVID-19.
