What's the Deal With COVID Testing Now? Doctors Explain When to Test, How to Get Them and More

A PCR test detects the actual genetic material of the virus and involves a step that amplifies the presence of any material ...

COVID Is Beginning to Surge Globally—What Are the Symptoms, and How Serious Is It?

SARS-CoV-2 infections have been rising in the past month — global cases increased by more than 19,000 last month compared ...

Disease of 1,000 faces shows how science is tackling immunity’s dark side

Doctor after doctor misdiagnosed or shrugged off Ruth Wilson’s rashes, swelling, fevers and severe pain for six years. She ...

Mass. woman’s lupus journey sheds light on how science is tackling immunity’s dark side

Building on discoveries from cancer research and the COVID-19 pandemic, scientists are decoding the biology behind autoimmune ...

Is Covid during pregnancy linked to autism? What a new study shows, and what it doesn't

Massachusetts researchers examine how growth and learning are subtly shaped among children whose mothers had Covid-19 while pregnant.