Heidi Ledford

Scientists are studying whether long COVID could be linked to viral fragments found in the body months after initial infection. By Heidi Ledford In the chaos of the first months of the coronavirus pandemic, oncologist and geneticist Ami Bhatt was intrigued by...

The emergence of a new variant is just a matter of time, scientists say. By Heidi Ledford Now what? After the Omicron variant brought a fresh wave of SARS-CoV-2 infections and anxiety at the start of 2022, some nations are starting to record a decline in...