Chise @sailorrooscout on Covid-19 vaccines: Why do we need 3 doses?


Chise / Senior Scientist / Vaccine Research & Development


But wait, there’s more. Reminder that your TDap: Tetanus-Diphtheria-Pertussis (every 10 years) are technically a repetitive vaccine series or rather boosters during adulthood. For HPV, the recommended schedule is two doses given 6-12 months apart. Boosters are not a new concept.

The term infection refers to the virus entering and being detectable in your system regardless of whether OR NOT it makes you sick, whereas the term illness refers to the virus entering, being detectable in your system AND making you sick. It it important not to conflate the two.

“The first thing to know about the COVID-19 vaccines is that they’re doing exactly what they were designed and authorized to do. Since the vaccines first started their rollout, rates of COVID-19 disease have taken an unprecedented plunge among the immunized.”

“The second thing to know about the COVID-19 vaccines is that they’re flame retardants, not impenetrable firewalls, when it comes to the coronavirus. Some vaccinated people are still getting infected, and a subset of these individuals is still getting sick

and this is completely expected.” Post-vaccination infections are known to occur after vaccination against other diseases, such as influenza and measles. Why? Because NO VACCINE IS 100% EFFECTIVE. You can find more on vaccine schedules here:


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