The vaccine also must be proven safe. And to qualify for an "emergency use authorization," any COVID-19 vaccine must track at least half the participants in large-scale studies for two months after their second dose, the time period in which side effects are likely to appear.
https://www.9news.com.au/national/c...oduction/a622f0d4-b47d-4edb-8e1d-d9ba2dbabff0
https://www.9news.com.au/national/c...oduction/a622f0d4-b47d-4edb-8e1d-d9ba2dbabff0
