Get Virtual Care
For Businesses
About Us
A member asked:
If i had 4 covid vaccines 2 are boosters would they be out of my system if the last one was over a year ago?
A doctor has provided 1 answer
I suspect so. The mRNA based vaccines appear to have a protection window limited to 6 month/ more or less. A last dose over a year ago has likely lost any residual benefit.
Answered 7/25/2023
0 views
Thank
Related Questions
A member asked:
I had my covid vaccine booster about 7:30p, 2 hours ago. My first 2 doses I had earlier in the year caused me anxiety. I'm having runny nose and scratchy throat but I do have allergies and it's been raining. Is it to early for booster side effects?
2 doctors weighed in across 2 answers
A member asked:
Does the Covid vaccine respond well in patients with low WBC- low lymphocytes? Neutrophil ct is stable I have congenital neutropenia. I received 2 Pfizer vaccines and a booster. Im still in fear my immune system is too low to respond to the vaccine?
3 doctors weighed in across 2 answers
A member asked:
Should you receive the same COVID-19 booster as the original two doses or choose a different vaccine?
2 doctors weighed in across 2 answers
People also searched for:
Is it safe for 70 year old female to take the pneumonia vaccine two weeks after the COVID-19 booster dose. Only thing is another person in same household got into possible stridor allergic reaction from booster. Wondering should we wait longer?
Had 2 Pfizer Covid vaccines last year.Recently also take diclofenac sodium oral tablets + femotidine for treating frozen shoulder pain.Can I get 3rd Pfizer booster shot while taking this pain killer + antacid? Any possible side effects I should know?
I have had 3 shots of Phizer Covid vaccine about year and half ago and I just tested positive for Covid. Is this common? Do I need the Omnicron booster also?
My 82 year old dad has just tested positive for covid. He has had all of his covid vaccines and boosters, and currently just has a nasty cold. I am so worried that his symptoms will get worse. Is this likely?
Did they put a Covid Booster inside the flu shot this year or do you have to get a Covid Booster shot vaccine too?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
