CDC Study answers this question
QUESTION: How effective is just one COVID-19 vaccine if you did not get the second?
Type of study? A Centers for Disease Study
Where? 33 sites in 25 states (U.S. study)
Who? Health Care Provider recipients of Pfizer and Moderna vaccines
Results? One vaccine offered an 82% protection rate (Pfizer, Moderna)
94% for 2 doses. This similar to what we saw in the clinical trials
How about people with lupus, Sjogren's and other autoimmune diseases?
- They were not studied
- However, there are active studies being done at the NIH, Johns Hopkins, etc
- If you live near Bethesda, MD, call the NIH nurses at 301-435-4489 and 301-451-4990; tell them Dr. Thomas sent you
- If you have an autoimmune disorder, especially if you are on immunosuppressant therapy, you are at higher risk of bad outcomes from COVID-19 infection.
- It is imperative you get vaccinated
- Make sure to stop your immunosuppressants appropriately for vaccination (but ask your doctor 1st to check)
Here is a link on how to stop meds for the vaccines:
- If you get vaccinated, pretend you are as vulnerable as if you did not get vaccinated
- Still practice social distancing
- Ignore the CDC guidance for others who are vaccinated... i.e. still wear your masks and socially distance from everyone and plead the unvaccinated to just stay away from you (I always worry about my patients)
REFERENCE: ACR, COVID-19 Vaccine Clinical Guidance Summary for Patients with Rheumatic and Musculoskeletal Diseases. Developed by the ACR COVID-19 Vaccine Clinical Guidance Task Force.
Pilishvili T, Fleming-Dutra KE, Farrar JL, et al. Interim Estimates of Vaccine Effectiveness of Pfizer-BioNTech and Moderna COVID-19 Vaccines Among Health Care Personnel — 33 U.S. Sites, January–March 2021. MMWR Morb Mortal Wkly Rep. ePub: 14 May 2021. DOI: http://dx.doi.org/10.15585/mmwr.mm7020e2external icon.
Note that Dr. Thomas' posts are for informational purposes only, and are not meant to be specific medical advice for individuals. Always seek the advice of your healthcare provider with any questions regarding your own medical situation.
DONALD THOMAS, MD