Researchers say dormant viruses many people harbor can reactivate during COVID-19 and may be linked to long COVID symptoms.

Chronically infecting viruses—such as Epstein-Barr virus, cytomegalovirus (CMV) and herpesviruses—are common and often innocuous and asymptomatic. However, emerging evidence suggests their ...

Every time a virus invades a person, it collides with thousands of years of human history. A study led by researchers at the ...

Since the COVID-19 pandemic, many people have questioned whether the vaccines were actually safe. Skeptics have theorized ...

The claim stemmed from two recent cohort studies, one from South Korea and one from Italy.

Here’s what we’ve learned – and how our understanding has evolved – since the earliest cases of the novel coronavirus were ...

The release of Dr. Anthony Fauci's pandemic diaries has rekindled the debate over the origins of SARS-CoV-2. Here's how ...

Fauci received his first COVID-19 vaccine in December 2020, around six months before his doctors discovered lung tissue death ...

Sen. Rand Paul has pointed to a line in Dr. Anthony Fauci’s diary to claim that the former director of the National Institute ...