Well if you are a conspiracy theorist, stalling Leronlimab may be necessary for vaccines. I am not qualified to make the following statement, but it is my belief that if LL is used widely and administered early in the progression that we will not have a need for a vaccine.
In all likelihood it will be a combination of vaccine and treatment, but I can tell you that if LL proves itself and is available to me, I will not get a vaccine until we know its safe.