WASHINGTON (Reuters) - Breast tumors that killed an American woman with so-called "triple negative" cancer had 50 separate mutations, including 20 that helped them spread, researchers reported on ...

SAN FRANCISCO -- Preliminary data out of South Africa is giving the world insight into how strong omicron really is. The South African Medical Research Council just reported this variant may cause ...

A Dutch man with the longest case of COVID infection ever recorded suffered from the sickness for a record 613 days, with the ailment mutating into a unique new variant that baffled medical ...

Gene sequencing of 27 nasal specimens taken from the man with the longest known case of COVID-19 revealed more than 50 mutations in the COVID-19 virus, including variants with changes in the spike ...

A study published in Nature Medicine found that monkeypox viruses from the current outbreak have on average 50 differences in their DNA compared to the versions from about four years earlier. That’s ...

The first study to compare the accumulation of mutations across many animal species has shed new light on decades-old questions about the role of these genetic changes in ageing and cancer.