The truth about Covid-19 booster shots: What effect a third vaccine has patient death rates
A Covid-19 booster shot provides 65 per cent better protection against Omicron according to the results of a study of two million people done in greater Sydney in January and February 2022.
New South Wales Kristine Macartney Bette Liu National Centre For Immunisation Research National Centre Immunisation Research
Source: dailymail.co.uk