Fourth Covid shot to provide little benefit against Omicron infection

 The covid fourth shot discovered to be safe, and topped up recipients' neutralizing antibodies ,which block the coronavirus from infecting cells to levels comparable to simply after the third dose, prior to whilst antibody levels commenced waning with time.

The observe protected best a small number of members and become now not a randomized trial. meaning its conclusions ought to be interpreted with caution but the outcomes factor toward most effective minor benefits from the extra dose.