Common respiratory infections, including Covid-19 and influenza, can awaken dormant breast cancer cells that have spread to the lungs, setting the stage for new metastatic tumours, according to a new study.
The findings published in the journal Nature, based on mouse studies as well as meta-analysis of human patients, support research showing increases in death and metastatic lung disease among cancer survivors infected with SARS-CoV-2 -- the virus that causes Covid.
"Our findings indicate that individuals with a history of cancer may benefit from taking precautions against respiratory viruses, such as vaccination when available, and discussing any concerns with their health care providers," said Julio Aguirre-Ghiso, from the Albert Einstein College of Medicine, US.