Cancer patients diagnosed more than 24 months ago are more likely to have a severe COVID-19 infection, research has found. Cancer patients of Asian ethnicity or who were receiving palliative treatment for cancer were also at a higher risk of death from COVID-19.

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The research published today in Frontiers in Oncology by researchers at King's College London and Guy's and St Thomas' Foundation Trust, and supported by the NIHR Guy's and St Thomas' BRC, examined the relationship between cancer and COVID-19.

There are limited studies investigating cancer patients and COVID-19, with small sample sizes that have yet to distinguish between the effects of age, cancer, and other comorbidities on COVID-19 in the cancer population. It can be difficult to diagnose COVID-19 in cancer patients as symptoms can look similar to cancer symptoms and adverse effects of cancer treatments. This can result in a delayed or missed COVID-19 diagnosis, which could lead to severe infection or higher death rates.