A member asked:

When you get vaccinated, and are exposed to covid for example, does covid initially infect some cells, and then your body quicky resolves it before you come infectious and have any symptoms? if so,does this act as another "booster" and raise antibody?

3 doctors weighed in across 3 answers
Dr. Samuel Galima answered

Specializes in Family Medicine

The COVID-19 vaccines are not live vaccines like MMR, Varicella, rotavirus, or influenza (intranasal). Moderna/Pfizer contain mRNA to help our body identify the spike proteins on the surface of the coronavirus. The J&J vaccine uses an adenovirus DNA vector in a different way to the same effect: to identify the spike proteins. If you get exposed, your immune system will be able to mount a response

Answered Feb 25, 2022

0 views

Thank

Still have questions?

Get the best care from a doctor who knows you.

Book a Video Appointment
appScreen
Sponsor Content
Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

Covid uses the spike protein as the key to get into the human cell when we are exposed the the virus. The mRNA vaccine (Pfizer or Moderna) helps our body to produce anti spike protein antibody so it neutralizes the spike protein and the virus loses the key to enter our cell. With infection, your body will act like you have a booster but you also develop different Ab besides anti spike protein Ab.

Answered Feb 25, 2022

0 views

Thank
Dr. Bennett Machanic answered

Specializes in Neurology

COVID-19 infection results in much wider array of bodily immune reactions, as contrasted to the vaccines involves IgA in the upper respiratory airways (nose, sinuses). Very clear that the natural infection will confer immunity lasting far longer than the vaccine effect. But the combination of both infection and vaccine seems to provide the best protection of all, as effects are additive.

Answered Feb 25, 2022

0 views

Thank

Related Questions

Online Primary Care Doctors Accepting New Patients

$44 video appointments available today with a membership as low as $15/month

Book a Video Appointment
Ask your question
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 question

Meet your new favorite doctor
...