Health

Population-scale study highlights ongoing risk of COVID-19 in some cancer patients despite vaccination

Credit: Pixabay / CC0 Domain Public

A study led by the Universities of Oxford, Birmingham and Southampton and the UK Health Authority (UHSA), published in Lancet Oncology Today, the Coronavirus, the British Cancer Society, found that while COVID-19 prevention is effective in most cancer patients, the level of protection against COVID-19 infection, hospitalization and death from vaccines is lower. population and vaccination is not. the effect diminishes rapidly.

Dr. Lenard Lee, of the Department of Oncology at Oxford University, who led the study, said: “We know that people with meningitis. cancer they are at risk for severe COVID-19 infection and that immune response if cancer patients exposure to COVID-19 is reduced. However, no studies have been conducted quality of prevention and the decline in cancer at the population level. We conducted a global evaluation of COVID-19, the world’s largest cancer control group. “

This study examined 377,194 people with cancer or more recently who received two doses of COVID-19 and tested SARS-CoV-2 PCR in the UK. The incidence of hospital-acquired COVID-19 and COVID-19 morbidity and mortality in this cohort of cancer patients was compared with the general population who had no cancer or more recently.

The overall effect of COVID-19 vaccine in population after two doses of COVID-19 vaccine the duration of the study was 69.8% while, in its own group, the overall effect of the vaccine was slightly reduced (65.5%). This suggests that COVID-19 prevention is effective in most cancer patients. However, the effectiveness of prevention is rapidly diminishing in cancer patients. At 3–6 months after the second dose of the vaccine, the effectiveness of the vaccine decreased by almost three percent from 61.4% in the general population to 47.0% in the self-administered group.

While the drug offered greater protection against hospitalization associated with COVID-19 (83.3%) and mortality (93.4%) than infection in its own group, this protection also decreased by 3–6 months after the first dose. two doses of vaccine.

Considering the differences between people with different types of cancer, the effectiveness of the vaccine is less and it decreases rapidly in those with leukemia, lymphoma and leukemia.

The type of treatment that people with cancer receive also affects the overall effectiveness of the prevention and reduction. In cancer patients who were treated in the last 12 months with chemotherapy or radiotherapy, the effectiveness of the vaccine was reduced and decreased by 3–6 months more than in cancer patients who did not receive these treatments or they were treated more than a year ago.

Professor Peter Johnson, Professor of Medical Oncology, University of Southampton commented: “This study suggests that for some cancer patients, COVID-19 vaccine may provide less effective and shorter protection. To COVID treatment. -19 for people with cancer. “

Helen Rowntree, Director of Research, Services and Co-operation at Cancer UK said: “For our community, much of COVID-19 has not gone away and many people have remained in their homes because of the COVID-19 threat described in in this important study.We know the importance of immunization for people who have it leukemia. This study highlights the importance that immunity is declining rapidly in people with leukemia, who have a risk of five prevention doses, and we will encourage anyone with leukemia to make sure they are getting these doses. ”


Vaccination protects most cancer patients from COVID, but the risk is higher for people with cancer


Learn more:
www.thelancet.com/journals/lan… (22) 00202-9 / fulltext

hintPopulation studies have shown an increased risk of COVID-19 in some cancer patients despite the vaccine (2022, May 23) being returned on 23 May 2022 from https: // medicalxpress. com / news / 2022-05-population-scale-highlights-congoing -covid-cancer.html

This document is copyrighted. Apart from any genuine transaction for the purpose of personal analysis or investigation, any part may not be reproduced without our written permission. Content is provided for informational purposes only.

Population-scale study highlights ongoing risk of COVID-19 in some cancer patients despite vaccination Source link Population-scale study highlights ongoing risk of COVID-19 in some cancer patients despite vaccination

Related Articles

Back to top button