Israel already on their 4th (count 'em - 4th!) booster. Today Pfizer is in front of the FDA arguing for boosters because they acknowledged their VE (vax effictenvess) drops to 47% after the 5th month.

So you got your Pfizer jab 5 months ago did ya and you think you're "fully-vaxxed". Well, according to Pfizer itself, less than half of you are. Thus, boosters. And boosters will probably be needed every 4 months as we sit here today. Think about that.