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Studies Suggest People with Blood Cancers May Not Be Optimally Protected after COVID-19 Vaccination

Share this article WASHINGTON, April 16, 2021 /PRNewswire/  Two new studies published in Blood suggest that the mRNA COVID-19 vaccine may have reduced efficacy in individuals with chronic lymphocytic leukemia (CLL) and multiple myeloma, two types of blood cancer. According to researchers, these studies could help inform the ideal time for vaccination of these populations. Study suggests two-dose COVID-19 vaccine is less effective for people with CLL as compared to healthy controls The first study reports that people with CLL had markedly lower immune response rates to the two-dose mRNA COVID-19 vaccine than healthy individuals of the same age. Because clinical trials of these vaccines did not include patients with blood cancers, who are at high risk of severe illness and complications from the virus, gauging the effectiveness of the vaccine in this population is critically important.

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