Johnson and Johnson recently announced that their “one dose” vaccine has only about 66% efficacy.
Well guess what, after one dose of the Pfizer ior the Moderna vaccines, their efficacy is less than that.
The difference is that from the outset, Pfizer and Moderna announced that their vaccines were 2 dose vaccines. Well, if J&J’s vaccine was also advertised as a 2-dose vaccine, it’s efficacy would probably also be in the 90% range that the other vaccines claim.
A second “booster” dose always leads to better immune response since the first one primes the immune system. This is also partly why people have a more significant reaction after the second dose. After the first dose, your immune system is now primed and the second dose leads to a more robust immune response, also resulting in more side-effects like fever, cachiness, headache and fatigue (~50%).
J&J has not officially announced if a second dose will be offered, but I suspect it probably will.
At this stage however, more people vaccinated, even at lower levels, is still better than nothing. More people with less efficacy is better than fewer people with full protection. These much more infectious variant viruses are a real concern. More infections lead to more illness, hospitalizations and death, espetially if our hospitals become overwhelmed again.
And remember, that after getting vaccinated, NOTHING changes with respect to personal and societal protection so you MUST continue to do all the things that protect everyone.
MASK
DISTANCE
WASH
DON’T TOUCH YOUR FACE
EYE PROTECTION
VENTILAT
VACCINATE GET HEALTHY.
Stay Safe and Be Well
AC