its more to do with total exposure thats why you don't need it as much or only need a booster if youre going to a high risk environment. the main
Larssen wrote:Well I reckon this is the first time frequency is so high. Chances are some people are receiving 4 to 5 shots of some covid vaccines in the span of about a year. It's a bit different from a once yearly flu shot or dtp, hepatitis, bmr, yellow fever vaccinations that usually need only one shot for a duration of 5-10 years. Granted those were also vector based, most are now mrna which as you say works differently.
Unarguably it's still preferable to just take the shot no matter, but I wonder if these stimuli remain as effective after such frequent application.
problem with covid that people keep forgetting is that it has an extremely high rate of transmission like no other disease we have seen, particularly with omnicron.
i am actually amazed there are still a few covid 0 countries/regions still tbh.
Flu vacc has something like 50-60% efficacy and drops 5-10% per month. total efficacy can drop to 14% within 6 months to a year...