The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

The mu variant is the fifth variant strain to earn the title of "variant of interest" from the WHO. Among the other variants tracked by the WHO is the delta variant — a mutant strain proven to be more ...

HOUSTON, Texas (KTRK) -- The World Health Organization has listed "mu", the newest COVID-19 variant, as a 'variant of interest'. Health officials say they are keeping a close eye on it, so we asked Dr ...

The mu variant is the latest to spark headlines in the coronavirus pandemic, but for now the delta strain remains the biggest concern.

OBJECTIVESTo evaluate the effectiveness of the mRNA-1273 vaccine against SARS-CoV-2 variants and assess its effectiveness against the delta variant by time since vaccination. DESIGNTest negative ...