Table 3.

Reasons why the world should collaborate to accelerate the development of COVID‐19 live‐attenuated vaccines (LAVs)

Order	Reason
1	Other vaccines have limited efficacy and limited production efficiency
2	LAVs have well defeated far more viruses for long than other vaccines
3	Most of the current human vaccines for viral diseases are safe LAVs
4	LAVs could be much cheaper and produced much faster than other vaccines
5	Safety of LAVs can be well guaranteed via animal experiments and clinical trials
6	Safety of LAVs can be better guaranteed with modern technologies
7	Safety of LAVs can be better guaranteed with novel administration routes
8	LAVs could block transmission of relevant viruses and their variants completely and thus inhibit virus mutation
9	LAVs could protect immunologically abnormal individuals better from a panorama view
10	COVID‐19 LAVs could save millions of more lives than other vaccines
11	Global collaboration could significantly accelerate the development of COVID‐19 LAVs