What are the recommendations for cancer patients on COVID-19 vaccines if they’ve tested positive for COVID-19 antibodies or the virus? Expert Dr. Shaji Kumar shares current vaccine recommendations for cancer patients.
Here’s a question many cancer patients are unclear about if antibodies are present or if I have tested positive before, “Should I still get the vaccine?”
Dr. Shaji Kumar:
I know the recommendation right now is to go ahead and get the vaccine, partly because we don’t know the natural immunity from the infection, how long does it last. So it seems like the antibodies can start to wane off the infection. And again, we don’t have a lot of data on it, but it looks 3 to 6 months, it might start waning at least to the level that they can detect. Now, whether that is sufficient or even the undetectable levels is protective against a future infection, we don’t know. There have been some reports of people getting a second infection even though they have been infected before again, scattered reports, we don’t know how widespread that phenomenon is going to be, so given all these, I think the current recommendation would be to go ahead and get vaccinated. We generally tell people to wait for two to three months after the infection to go ahead with the vaccination.
Is the idea of pre-screening, especially for cancer patients, maybe who may be at risk to see whether they have antibodies be an effective thing to decide which vaccine they should get? What are your thoughts on that?
Dr. Shaji Kumar:
You look at the Moderna and the Pfizer trials, and they said, now over 90 percent effective. Look at the AstraZeneca trials, you know, it’s like they recorded 70 to 80, 85 percent, and the J&J about 80 to 90 percent effective. Do these numbers mean much? It’s really hard to know, I think, partly because they have been tested in, again, different countries, different times, as the virus was continually changing its characteristics. So one could argue that maybe the vaccines that were tested later on when this will be some of the mutants were already there might be more effective, but we don’t know.
I think at the end of the day, 80 versus 90 is not something we would decide a vaccine on. The fact that, yes, if something was only 10 percent effective versus 90 percent, it’s a probably different story. So based on the numbers we have seen, I would say whatever you can get to first, if you don’t want to get jabbed twice, maybe you go with something that goes, it’s only one dose, but that may be the only distinguishing factor here, but nevertheless, I think we have to just get the vaccination, the first vaccine that we can get our hands on.